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Ramesh Sir
India
เข้าร่วมเมื่อ 9 ก.ย. 2013
Hello students,
Through this channel i will teach you physics for class 11 and 12.
I hope these videos would be sufficient to clear your concepts required for your board preparation.
At the same time i try to make the videos suitable for the preparation of JEE, NEET and other competitive exams.
ramesh4sah@yahoo.co.in
Thank you
Through this channel i will teach you physics for class 11 and 12.
I hope these videos would be sufficient to clear your concepts required for your board preparation.
At the same time i try to make the videos suitable for the preparation of JEE, NEET and other competitive exams.
ramesh4sah@yahoo.co.in
Thank you
A shell is fired from a cannon, it explodes in mid air, it's total:(a) momentum increases(b) momen
A shell is fired from a cannon, it explodes in mid air, it's total:
(a) momentum increases
(b) momentum decreases
(c) Kinetic energy increases
(d) Kinetic energy decreases
(a) momentum increases
(b) momentum decreases
(c) Kinetic energy increases
(d) Kinetic energy decreases
มุมมอง: 31
วีดีโอ
A converging lens and a diverging mirror are placed at a separation of 15 cm. The focal length
มุมมอง 113 หลายเดือนก่อน
A converging lens and a diverging mirror are placed at a separation of 15 cm. The focal length of the lens is 25 cm and that of the mirror is 40 cm. Where should a point source be placed between the lens and the mirror so that the light, after getting reflected by the mirror and then getting transmitted by the lens, comes out parallel to the principle axis ?
Image of an object approaching a convex mirror of radius of curvature 20 m
มุมมอง 404 หลายเดือนก่อน
Image of an object approaching a convex mirror of radius of curvature 20 m along its optical axis is observed to move from 25/3 m to 50/7 m in 30 s. What is the speed of the object in km h-1 ?
A cylinder of mass 'M' and radius 'R' is connected to a small block
มุมมอง 184 หลายเดือนก่อน
A cylinder of mass 'M' and radius 'R' is connected to a small block of mass 'm' with the help of inextensible string. The cylinder is in pure rolling motion. Find the acceleration of the block.
two blocks of mass m1 and m2 are
มุมมอง 294 หลายเดือนก่อน
Two small blocks of mass m1 and m2 are attached to the ends of a cord which passes over the pulley of mass M and radius R. Calculate the acceleration of the blocks and tension in the string.
A convex lens has power P. It is cut into two halves
มุมมอง 1804 หลายเดือนก่อน
A convex lens has power P. It is cut into two halves along its principal axis. Further one piece (out of the two halves) is cut into two halves perpendicular to the principal axis (as shown in figure). Choose the incorrect option for the reported pieces. (a) Power of L1 = P/2 (b) Power of L2 = P/2 (c) Power of L3 = P/2 (d) Power of L1 = P
work done by all the forces (external and internal)
มุมมอง 104 หลายเดือนก่อน
The work done by all the forces (external & internal) on a system equals the change in: (a) Total energy (b) kinetic energy (c) Potential energy (d) None of these
the plane face of a planoconvex lens is silvered
มุมมอง 324 หลายเดือนก่อน
The plane face of a planoconvex lens is silvered. If µ be the refractive index and R, the radius of curvature of curved surface, then the system will behave like a concave mirror of radius of curvature (a) µR (b) R/(µ-1) (c) R/µ (d) {(µ 1)/(µ - 1)}R
a concave mirror of radius R is kept on a horizontal table
มุมมอง 174 หลายเดือนก่อน
A concave mirror of radius R is kept on a horizontal table (as shown in the figure). Water (refractive index = µ) is poured into it upto height h. Where should an object be placed so that its image is formed on itself ?
A body of density 'D' and volume 'V' is lifted through height 'h'
มุมมอง 234 หลายเดือนก่อน
A body of density 'D' and volume 'V' is lifted through height 'h' in a liquid of density 'd' (d smaller than D). The increase in potential energy of the body is: (a) V(D-d)gh (b) VDgh (c) Vdgh (d) V(D d)gh
A ray of light moving along the vector (i - 2j)
มุมมอง 304 หลายเดือนก่อน
A ray of light moving along the vector (i - 2j) undergoes refraction at an interface of two media, which is x-z plane. The refractive index for y more than 0 is 2 while for y less than 0 it is root5/2. The unit vector along the refracted ray is (a) (-3i - 5j)/root34 (b) -(4i - 5j)/5 (c) (-3i - 4j)/5 (d) (4i - 3j)/5
a printed page is pressed by a glass of water
มุมมอง 884 หลายเดือนก่อน
A printed page is pressed by a glass of water. The refractive index of the glass and water is 1.5 and 1.33, respectively. If the thickness of the bottom of glass is 1 cm and depth of water is 5 cm, how much the page will appear to be shifted if viewed from the top ? (a) 1.033 cm (b) 3.581 cm (c) 1.3533 cm (d) 1.90 cm
a particle of mass m moving with velocity v collides
มุมมอง 1124 หลายเดือนก่อน
a particle of mass m moving with velocity v collides with a stationary particle of mass 2m. After collision, they stick together and continue to move together with velocity (a) V (b) V/2 (c) V/3 (d) V/4
a particle moves in a straight line with retardation proportional
มุมมอง 334 หลายเดือนก่อน
a particle moves in a straight line with retardation proportional to its displacement. It's loss of kinetic energy for any displacement x is proportional to (a) x (b) ex (c)x2 (d) logx
a particle of mass m moves on a
มุมมอง 334 หลายเดือนก่อน
a particle of mass m moves on a straight line with it's velocity varying with the distance travelled according to the equation v = a root x where a is a constant. Find the total work done by all the forces during a displacement from x = 0 to x = d
snells law - To prove using huygens principle
มุมมอง 294 หลายเดือนก่อน
snells law - To prove using huygens principle
A block of mass m sliding on a smooth horizontal surface
มุมมอง 694 หลายเดือนก่อน
A block of mass m sliding on a smooth horizontal surface
To prove angle of incidence is equal to angle of reflection
มุมมอง 2954 หลายเดือนก่อน
To prove angle of incidence is equal to angle of reflection
the potential energy of a long spring when stretched by 2 cm is u
มุมมอง 244 หลายเดือนก่อน
the potential energy of a long spring when stretched by 2 cm is u
Figure shows a 11.7 ft wide ditch with the approach roads
มุมมอง 114 หลายเดือนก่อน
Figure shows a 11.7 ft wide ditch with the approach roads
two thin lenses are of same focal length (f) but one is convex
มุมมอง 314 หลายเดือนก่อน
two thin lenses are of same focal length (f) but one is convex
assuming the earth to be a sphere of uniform mass density
มุมมอง 554 หลายเดือนก่อน
assuming the earth to be a sphere of uniform mass density
light travels a distance x in time t1 in air and 10x in time t2
มุมมอง 654 หลายเดือนก่อน
light travels a distance x in time t1 in air and 10x in time t2
the acceleration due to gravity on the surface
มุมมอง 424 หลายเดือนก่อน
the acceleration due to gravity on the surface
A wire of resistance R and length L is cut into 5 equal parts
มุมมอง 954 หลายเดือนก่อน
A wire of resistance R and length L is cut into 5 equal parts
Great sir❤
14:36 little correction , you accidentally wrote underoot 3/2 instead of underoot 3/5. Thank you sir , wonderful lecture.
Thanku sir😊
Sir maa kasam boht acha padhaya hai 🙏❤❤thanks from deep of my heart
Kya padaya hee sir apne pheli bar mee hi samaj aa gaya 👏🏻👏🏻
Aap kisko padha rehaho kuch smj nhi aya
❤❤
Thanks sir
You explained it very well Sir👍
I learnt something from your lecture thanks❤
Wonderful sir 🎉
Sir, I am very grateful 🙏 to you because till now no teacher has explained me like this. I always thought why are we using this and how to use this. Thank you very much now my 11 th class won't go in vain.
Good but not well explained
Nice video someone confusion in the concept of banket road 🛣️🙅🙅
Thank you so much sir this video is so helpful❤❤❤ for me .....
🎉😢
But I'm studying on day of exam
❤❤
Thank you sir ❤
Literally Enthralling explanation🎉😊
Thnx sir
Sir second graph, that is vt graph mai slope acceleration dega But slope toa ball k uper ko jate wqt b -ve aara hai and ball k nache aate wqt be -ve aara h Could you please explain
thanks sir ❤❤❤
Thank you sir .... Mere exam mein ye derivation aa gaya tha .... Aur maine kewal ek baar is video ko dekha ...fir mere mind mein sab aagya .... dubaara dekhna hi nahi pada ....aur bhule bhi nahi Ye exam ke 5 number ki baat nahi hai .... Lekin feel aagya tha is concept ka .... ❤❤ Aap feel dila diye 🙏❤️
Very good vid really helpful
Colby Port
Reuben Tunnel
Trever Lock
White Trail
Austen Lake
Really sir after a lots of confusion in taking direction of static friction for maximum and minimum safe speed i found your video so much helpful🙏. You explained only maximum safe speed but by that i understand why the direction of static friction for minimum safe speed is along the road , upwards. Thanks a lot sir🙏❣️.. Seeing u to reply till now made me more happy😃🫶..
Glad to know, this is my reward
Worst video I have ever seen on yt you don't know how to teach
Thank you sir
👍👍
Sir maine pw se leke graduation tak ke saare teachers ke video dekhe kise se bhi samajh nhi aya dynamic math ke liye aap ne itna acha samjaya ke mere saare doubt clear ho gye
👍👍👍
❤
What a superb explanation 😌...I had all my doubts cleared 🙌...a ton of thanks to you sir💞
Hello sir you explain really good please make a playlist of all derivations of class 11 chapters. Love you sir
Sir please one shot of laws of motion with some question practice
Video lengthy ho jaayega, kaafi kuch hai
👍👍
Sir centripital force ki zaroorat hoti ha
yes, for circular motion, if u r studying in inertial frame. Centripetal force hi particle ko circular motion me ghumaata hai.
One of the best educational TH-cam channel.
❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
Exam se 2 ghante phele dekh rha hu Wish me luck 💯
Concept well explained 🎉
Sir mera ye question hai sin or cos ka hi use ku krte hai tan,cot inka ku nhi
Comment zayasa Interesting hain😭 ab video dekho ya comment??
Sir the video was well astonishing but what is centripetal force and why did u convert centripetal force to pseudo force
If u r studying in inertial frame (like observer on earth) then u will have to take centripetal force coz its circular motion for this observer Whereas is u r studying in non inertial frame (like observer in car) then u will have to take pseudo force cos car is at rest for this observer.
chutia content and video