1
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
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A person is standing in an elevator. In which situation, he experiences weight loss?

A
When the elevator moves upward with constant acceleration
B
When the elevator moves downward with constant acceleration
C
When the elevator moves upward with uniform velocity
D
When the elevator moves downward with uniform velocity
2
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

An object is thrown vertically upwards. At its maximum height, which of the following quantity becomes zero?

A
Momentum
B
Potential Energy
C
Acceleration
D
Force
3
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A ball is released from rest from point P of a smooth semi-spherical vessel as shown in figure. The ratio of the centripetal force and normal reaction on the ball at point Q is A while angular position of point Q is $$\alpha$$ with respect to point P. Which of the following graphs represent the correct relation between A and $$\alpha$$ when ball goes from Q to R?

JEE Main 2022 (Online) 26th June Morning Shift Physics - Circular Motion Question 31 English

A
JEE Main 2022 (Online) 26th June Morning Shift Physics - Circular Motion Question 31 English Option 1
B
JEE Main 2022 (Online) 26th June Morning Shift Physics - Circular Motion Question 31 English Option 2
C
JEE Main 2022 (Online) 26th June Morning Shift Physics - Circular Motion Question 31 English Option 3
D
JEE Main 2022 (Online) 26th June Morning Shift Physics - Circular Motion Question 31 English Option 4
4
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A thin circular ring of mass M and radius R is rotating with a constant angular velocity 2 rads$$-$$1 in a horizontal plane about an axis vertical to its plane and passing through the center of the ring. If two objects each of mass m be attached gently to the opposite ends of a diameter of ring, the ring will then rotate with an angular velocity (in rads$$-$$1).

A
$${M \over {(M + m)}}$$
B
$${{(M + 2m)} \over {2M}}$$
C
$${{2M} \over {(M + 2m)}}$$
D
$${{2(M + 2m)} \over M}$$
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