CRACKNEETPhysics

A satellite of mass m is to be launched from the surface of the Earth. The Earth has mass M and radius R. Neglect air resistance and the rotation of the Earth. What is the minimum energy required to launch the satellite so that it just escapes from Earth’s gravitational field?

A) GMm / R
B) GMm / 2R
C) 2GMm / R
D) GMm / 4R

youtube.com/live/KjveCfOSsp8

2 weeks ago | [YT] | 1

CRACKNEETPhysics

A child is standing inside a bus moving with constant velocity on a straight horizontal road. The child is pushing hard against a vertical pole fixed inside the bus.

At that instant, which set of forces acts on the child?

A) Weight + normal reaction from floor + force exerted by the pole
B) Weight + normal reaction from floor only
C) Weight + normal reaction + force of friction from the floor
D) Weight + normal reaction + force exerted by the pole + force of friction from the floor

For Important MCQs : youtube.com/live/YATrLiPFD78

Selection Walla Channel is serious Physics education, built for students who are serious about selection. With 3000+ Physics videos and 4000+ MCQs, you have enough free material to cover and practise the complete Class 11 & 12 Physics syllabus for competitive examinations.

2 weeks ago | [YT] | 0

CRACKNEETPhysics

Dear NEET Aspirants,

Selection Walla Channel is serious Physics education, built for students who are serious about selection. With 3000+ Physics videos and 4000+ MCQs, you have enough free material to cover and practise the complete Class 11 & 12 Physics syllabus for competitive examinations.

📚 Go through the playlists systematically.
🎥 Watch the classes.
📝 Attempt the MCQs.
🔁 Revise and practise repeatedly.

Don't keep searching for more and more resources. The resources are already here. Use them.

If you genuinely complete the lectures and attempt the questions with discipline, you can build the conceptual understanding and problem-solving ability needed to score strongly in Physics.

Physics can be decisive in NEET. Make it your strength, not your weakness.

Rohit Sir – Your Physics Guide
Selection Walla Channel 🚀

3 weeks ago | [YT] | 4

CRACKNEETPhysics

Selection Walla Channel with Rohit Sir, Your Physics Guide, is where difficult Physics becomes understandable, confidence replaces fear, and every student gets a chance to learn without barriers. ❤️📚

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4 weeks ago | [YT] | 4

CRACKNEETPhysics

Selection Walla Channel with Rohit Sir, Your Physics Guide, is where difficult Physics becomes understandable, confidence replaces fear, and every student gets a chance to learn without barriers. ❤️📚

🧠 NEET Physics Challenge | Magnetic Force

A current-carrying wire is placed in a uniform magnetic field. The wire is bent into a zig-zag shape, but its two end points are separated by a straight-line distance L.

The current I flows continuously from one end to the other.

Which statement is correct about the net magnetic force on the entire wire?

A) It depends on the total length of the zig-zag wire, so F = I L_total B sinθ

B) It depends on the shape of the zig-zag wire, so the force must be calculated separately for every segment

C) It depends only on the vector joining the two end points, so F = I L B sinθ, where θ is the angle between this end-to-end vector and B

D) The magnetic force is always zero because the conductor is not straight

4 weeks ago | [YT] | 0

CRACKNEETPhysics

⚡ 3000+ FREE Physics videos. 4000 FREE MCQs. One channel. Every major exam. Start learning smarter, not costlier.

1 month ago | [YT] | 3

CRACKNEETPhysics

⚡ 3000+ FREE Physics videos. 4000 FREE MCQs. One channel. Every major exam. Start learning smarter, not costlier.

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1 month ago | [YT] | 5

CRACKNEETPhysics

⚡ 3000+ FREE Physics videos. 4000 FREE MCQs. One channel. Every major exam. Start learning smarter, not costlier.

1 month ago | [YT] | 5

CRACKNEETPhysics

⚡ 3000+ FREE Physics videos. 4000 FREE MCQs. One channel. Every major exam. Start learning smarter, not costlier.

A wheel is rotating anticlockwise when viewed from the front.

Question: What is the direction of its angular velocity vector?

A) Towards you ⬆️
B) Away from you ⬇️
C) Towards the right ➡️
D) Towards the left ⬅️

Think for 5 seconds before answering.

Two Playlists on Rotational Motion and Dynamics

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1 month ago | [YT] | 0

CRACKNEETPhysics

⚡ 3000+ FREE Physics videos. 4000 FREE MCQs. One channel. Every major exam. Start learning smarter, not costlier.

🔥 NEET-STYLE MCQ | YDSE


In Young’s Double Slit Experiment, two coherent sources produce waves of equal intensity I₀ at a point on the screen. The intensity at that point is found to be 2I₀.

Which of the following statements is CORRECT?

A) The waves are completely out of phase and destructive interference is occurring.

B) The phase difference between the waves is 90°, and the point is neither a maximum nor a minimum.

C) The energy of the waves has been reduced to half because interference destroys part of the energy.

D) The point must lie exactly halfway between a bright fringe and the adjacent dark fringe.

🧠 Think carefully:
Don't just look for a formula. Connect intensity → phase difference → interference → energy conservation.

Watch :https://youtu.be/y2UFTRO-eso


🧠 YDSE MEMORY HOOKS | NEET PHYSICS

🌊 INTERFERENCE = ENERGY REDISTRIBUTION

Remember this line:

“Dark spots don’t eat the energy… Bright spots get it!” ⚡

🔹 Bright fringe → Intensity increases
🔹 Dark fringe → Intensity decreases
🔹 Overall → Energy is redistributed, NOT destroyed

🎯 For Intensity Questions

“Phase decides the brightness!”

Same phase → Maximum intensity 🔆
Opposite phase → Minimum intensity 🌑
Intermediate phase → Intermediate intensity

🔥 One Golden Line

INTERFERENCE DOESN’T CREATE ENERGY.
IT ONLY MOVES THE ENERGY AROUND.

📌 Selection Walla Channel | Concepts That Stay Forever!

1 month ago | [YT] | 0