Phy101 important question for finals Questions: 1. Which weighs more, a liter of ice or a liter of water? 2. Will the current in a light bulb connected to a 220-V source be greater or less than when the same bulb is connected to 110-V source? 3. How is the wavelength of light related to its frequency? 4. We don't notice the de Broglie wavelength for a pitched baseball. Is this Because the wavelength is very large or because it is very small? 5. Does every magnet necessarily have a north and south pole? Explain 6. In a cool room, a metal or marble table top feels much colder to the touch than does a wood surface even though they are at the same temperature. Why? 7. If a water wave oscillates up and down three times each second and the distance between wave crests is 2 m, what is its frequency? What is its wavelength? What is its wave speed? 8. A transformer has N1 = 350 turns and N2 = 2 000 turns. If the input voltage is coil? 9. Why do astronomers looking at distant galaxies talk about looking backward in time? 10.Some distant astronomical objects, called quasars, are receding from us at half the speed of light (or greater). What is the speed of the light we receive from these quasars? 11.Consider a lamp hanging from a chain. What is the tension in the chain? 12.Aproton travels with a speed of 3.00 * 106 m/s at an angle of 37.0° with the direction of a magnetic field of 0.300 T in the + y direction. What are (a) the magnitude of the magnetic force on the proton and (b) its acceleration? 13.Light from the Sun takes approximately 8.3 min to reach the Earth. During this time interval the Earth has continued to rotate on its axis. How far is the actual direction of the Sun from its image in the sky? 14.Do all current-carrying conductors emit electromagnetic waves? Explain 15.Explain solar convection zone. What is its other name? 16.If a charged particle moves in a straight line through some region of space, can you say that the magnetic field in that region is zero? 17.Can all gas molecules in the vessel have the same speed? 18.What are the properties of wave function? 19.A bike accelerates uniformly from rest to a speed of 7.10 m/s over a distance of 35.4 m. Determine the acceleration of the bike. 20.A flat loop of wire consisting of a single turn of cross-sectional area 8.00 cm2 is perpendicular to a magnetic field that increases uniformly in magnitude from 0.500 T to 2.50 T in 1.00 s. What is the resulting induced current if the loop has a resistance of 2.00 W? 21.An ideal gas is contained in a vessel at 300 K. If the temperature is increased to 900 K, by what factor does each one of the following change? (a) The average kinetic energy of the molecules. (b) The rms molecular speed. (c) The average momentum change of one molecule in a collision with a wall. (d) The rate of collisions of molecules with walls. (e) The pressure of the gas. 22.Who discover the nucleus? Write the experimental setup that he follows. 23.In an analogy between electric current and automobile traffic flow, what would correspond to charge? What would correspond to current? 24.(a)When can you expect a body to emit blackbody radiation? (b) Which law is obeyed by Sun and other stars, briefly explain it.
PHy101 In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to: A. the energy of the least energetic electron before it is ejected B. the energy of the least energetic electron after it is ejected C. the energy of the most energetic electron before it is ejected *D. the energy of the most energetic electron after it is ejected* The quantum number ms is most closely associated with what property of the electron in an atom? A. Magnitude of the orbital angular momentum B. Energy *C. z component of the spin angular momentum* D. z component of the orbital angular momentum A farad is the same as a: A. J/V B. V/J *C. C/V* D. V/C E. N/C When you stand in front of a plane mirror, your image is: A. real, erect, and smaller than you B. real, erect, and the same size as you C. virtual, erect, and smaller than you *D. virtual, erect, and the same size as you* 23. In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to: A. their kinetic energy B. their potential energy C. the work function D. the frequency of the incident light *E. the number of photons that hit the sample* In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to: A. the energy of the least energetic electron before it is ejected B. the energy of the least energetic electron after it is ejected C. the energy of the most energetic electron before it is ejected *D. the energy of the most energetic electron after it is ejected* The units of magnetic dipole moment are: A. ampere B. ampere·meter *C. ampere·meter2* D. ampere/meter 39. A conducting sphere with radius R is charged until the magnitude of the electric field just outside its surface is E. The electric potential of the sphere, relative to the potential far away, is: A. zero B. E/R C. E/R2 *D. ER* 40. radio waves and light waves are ; * Electromagnetic and transverse* Q. According to scientist temperature of earth is rising about 3x10 power of -15 (not sure) what you think about it.
@@mariariaz7592mera ppr hogya tha phy101 ka ppr handout ma sy nai ataa sab conceptual or past ppr ma sy he hota hai ap sari fils kr lain jo b hoti hain grps ma or YT sy us chenal ki video dykhain or Iamteacher chenaal py prepration video hai wo dkh lain
mostly mcqs file main se aae thy but short question mere sare numerials thy jis main ik ka cross sectional area find krna tha long main types of wave, hydrogen atom properties aur 2 numericals thy@@mariariaz7592
sara paper conceptual tha kisi b pase files me se nae tha subjective me 1.define corona 2. fusion of sun 3. numerical the area or circumference or cicle wale topic me se tha 4. transformer wala ak long question tha. 5.test charges in different fields wala numerical tha.bs itna he yad hai @@mariariaz7592
@@Mr786_Surprise ma tou bol lou ga ap sahi tarha pronounce tou karlo phele bus video nhi dalni hoti agar isko educated bolte haii tou ma uneducated hi sahi
Helpfully . thank you 💕
Wlcme and Best of luck 🤞
agar ap ka paper ho gya hy to plz mujha bta dy k kya aya tha
Phy101 important question for finals
Questions:
1. Which weighs more, a liter of ice or a liter of water?
2. Will the current in a light bulb connected to a 220-V source be greater or
less than when the same bulb is connected to 110-V source?
3. How is the wavelength of light related to its frequency?
4. We don't notice the de Broglie wavelength for a pitched baseball. Is this
Because the wavelength is very large or because it is very small?
5. Does every magnet necessarily have a north and south pole? Explain
6. In a cool room, a metal or marble table top feels much colder to the touch
than does a wood surface even though they are at the same temperature.
Why?
7. If a water wave oscillates up and down three times each second and the
distance between wave crests is 2 m, what is its frequency? What is its
wavelength? What is its wave speed?
8. A transformer has N1 = 350 turns and N2 = 2 000 turns. If the input
voltage is coil?
9. Why do astronomers looking at distant galaxies talk about looking
backward in time?
10.Some distant astronomical objects, called quasars, are receding from us at
half the speed of light (or greater). What is the speed of the light we
receive from these quasars?
11.Consider a lamp hanging from a chain. What is the tension in the chain?
12.Aproton travels with a speed of 3.00 * 106 m/s at an angle of 37.0° with
the direction of a magnetic field of 0.300 T in the + y direction. What are
(a) the magnitude of the magnetic force on the proton and (b) its
acceleration?
13.Light from the Sun takes approximately 8.3 min to reach the Earth. During
this time interval the Earth has continued to rotate on its axis. How far is
the actual direction of the Sun from its image in the sky?
14.Do all current-carrying conductors emit electromagnetic waves? Explain
15.Explain solar convection zone. What is its other name?
16.If a charged particle moves in a straight line through some region of
space, can you say that the magnetic field in that region is zero?
17.Can all gas molecules in the vessel have the same speed?
18.What are the properties of wave function?
19.A bike accelerates uniformly from rest to a speed of 7.10 m/s over a
distance of 35.4 m. Determine the acceleration of the bike.
20.A flat loop of wire consisting of a single turn of cross-sectional area 8.00
cm2 is perpendicular to a magnetic field that increases uniformly in
magnitude from 0.500 T to 2.50 T in 1.00 s. What is the resulting induced
current if the loop has a resistance of 2.00 W?
21.An ideal gas is contained in a vessel at 300 K. If the temperature is
increased to 900 K, by what factor does each one of the following change?
(a) The average kinetic energy of the molecules.
(b) The rms molecular speed.
(c) The average momentum change of one molecule in a collision with
a wall.
(d) The rate of collisions of molecules with walls.
(e) The pressure of the gas.
22.Who discover the nucleus? Write the experimental setup that he follows.
23.In an analogy between electric current and automobile traffic flow, what
would correspond to charge? What would correspond to current?
24.(a)When can you expect a body to emit blackbody radiation?
(b) Which law is obeyed by Sun and other stars, briefly explain it.
Phy101. 9:30am
MCQs easy thy..
Files main sy thy
Or shorts
Bhii easy thy
Numericals pr focus krain
PHy101
In a photoelectric effect experiment at a frequency above cut off, the
stopping potential is proportional to:
A. the energy of the least energetic electron before it is ejected
B. the energy of the least energetic electron after it is ejected
C. the energy of the most energetic electron before it is ejected
*D. the energy of the most energetic electron after it is ejected*
The quantum number ms is most closely associated with what property of
the electron in an atom?
A. Magnitude of the orbital angular momentum
B. Energy
*C. z component of the spin angular momentum*
D. z component of the orbital angular momentum
A farad is the same as a:
A. J/V
B. V/J
*C. C/V*
D. V/C
E. N/C
When you stand in front of a plane mirror, your image is:
A. real, erect, and smaller than you
B. real, erect, and the same size as you
C. virtual, erect, and smaller than you
*D. virtual, erect, and the same size as you*
23. In a photoelectric effect experiment at a frequency above cut off, the
number of electrons ejected is proportional to:
A. their kinetic energy
B. their potential energy
C. the work function
D. the frequency of the incident light
*E. the number of photons that hit the sample*
In a photoelectric effect experiment at a frequency above cut off, the
stopping potential is proportional to:
A. the energy of the least energetic electron before it is ejected
B. the energy of the least energetic electron after it is ejected
C. the energy of the most energetic electron before it is ejected
*D. the energy of the most energetic electron after it is ejected*
The units of magnetic dipole moment are:
A. ampere
B. ampere·meter
*C. ampere·meter2*
D. ampere/meter
39. A conducting sphere with radius R is charged until the magnitude of the
electric field just outside its surface is E. The electric potential of the sphere,
relative to the potential far away, is:
A. zero
B. E/R
C. E/R2
*D. ER*
40. radio waves and light waves are ;
* Electromagnetic and transverse*
Q. According to scientist temperature of earth is rising about 3x10 power of -15 (not sure) what you think about it.
Thank you very much sir
Very help ful video ❤
Best Wishes For Your Exam ❤️
Thanks shahbaz bhai 😂 really helpful ❤❤
Welcme
decriptopn sy grp join ni ho raha plz snd the link...i want subjective fils of phy 101
03414883105 text me
Q 29 ka position ya positron
Positron is right answer
agar ap ka paper ho gya hy to plz mujha bta dy k kya aya tha
kia subjective questions mai equation derive krny ko ati hai?
No
Concept base Pa hota ha paper
@@Mr786_Surprise to hamary pass reasoning questions definitions aur numericals ai gy
Inshallah sure
agar ap ka paper ho gya hy to plz mujha bta dy k kya aya tha
Great..
thanks g
i just join the grp ...sir plz snd this file in grp..one more thing if u have subjective prepration files plz snd
03414883105 Text to me
agar ap ka paper ho gya hy to plz mujha bta dy k kya aya tha
@@mariariaz7592mera ppr hogya tha phy101 ka ppr handout ma sy nai ataa sab conceptual or past ppr ma sy he hota hai ap sari fils kr lain jo b hoti hain grps ma or YT sy us chenal ki video dykhain or Iamteacher chenaal py prepration video hai wo dkh lain
Mcq 29 is positron not position
Jazakallah Bhai
Sir yeah questions karna hai yeah mcqus hain
these are objectives
@@Mr786_Surprise sir plz group m again bhj dain m na ab join kia h group
@benishrubab5274 yah file Bajh du?
agar ap ka paper ho gya hy to plz mujha bta dy k kya aya tha
sir i think Q# 61 answer is diopter
agar ap ka paper ho gya hy to plz mujha bta dy k kya aya tha
mostly mcqs file main se aae thy but short question mere sare numerials thy jis main ik ka cross sectional area find krna tha long main types of wave, hydrogen atom properties aur 2 numericals thy@@mariariaz7592
theek hai
Han g
agar ap ka paper ho gya hy to plz mujha bta dy k kya aya tha
g mera paper o gaia hai@@mariariaz7592
sara paper conceptual tha kisi b pase files me se nae tha subjective me 1.define corona 2. fusion of sun 3. numerical the area or circumference or cicle wale topic me se tha 4. transformer wala ak long question tha. 5.test charges in different fields wala numerical tha.bs itna he yad hai
@@mariariaz7592
Bhai tum phele bolna tou seekh lou
Bhai ap Bol lo mri jagha mujhy to bolna nh ata shyd ap well educated ho
@@Mr786_Surprise ma tou bol lou ga ap sahi tarha pronounce tou karlo phele bus video nhi dalni hoti agar isko educated bolte haii tou ma uneducated hi sahi