Two simple pendulums of the same length are released from 10° & 20° respectively. Select the correct statement.

The second pendulum have will have a double time period than that of the first

They both will reach the mean position at the same time

The first pendulum will have a double time period than that of the second

Their maximum speed will be the same

Let T1 be the time period of a single spring mass system on a horizontal surface. Let T2 be the time period of the same system when hung from the ceiling. What is the expression for T1 & T2?

T1 = 2π √(m/k), T2 = 2π √(mg/k)

T1 = 2π √(m/k), T2 = 2π √(k/mg)

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1.	Two simple pendulums of the same length are released from 10° & 20° respectively. Select the correct statement.
A.	The second pendulum have will have a double time period than that of the first
B.	They both will reach the mean position at the same time
C.	The first pendulum will have a double time period than that of the second
D.	Their maximum speed will be the same
Answer» C. The first pendulum will have a double time period than that of the second

Discussion

2.	A spring block system is on a horizontal surface. The block is compressed by 10cm. What should be the coefficient of friction between the block and ground such that the block comes to a stop at the mean position? Mass of block = 0.5kg & spring constant = 3N/m.
A.	0.03
B.	0.06
C.	0.12
D.	0.05
Answer» C. 0.12

Discussion

3.	A spring mass system is on a horizontal plane. Spring constant is 2N/m & mass of block is 2kg. The spring is compressed by 10cm and released. A small ball is released from a height of 2m above the block on the horizontal plane. At what time should the ball be left if the block is released from the extreme position at t=0, given that the ball has to fall on the block when the speed of block is maximum?
A.	1.57s
B.	0.94s
C.	0s
D.	0.63s
Answer» C. 0s

Discussion

4.	A spring block system is on a horizontal plane. If spring constant is 2N/m & mass of block is 1kg. By what amount should the block be extended from equilibrium position such that maximum velocity at mean position is 2m/s?
A.	2√2 m
B.	3√2 m
C.	4√2 m
D.	2 m
Answer» B. 3√2 m

Discussion

5.	Let T1 be the time period of a single spring mass system on a horizontal surface. Let T2 be the time period of the same system when hung from the ceiling. What is the expression for T1 & T2?
A.	T1 = T2 = 2π √(k/m)
B.	T1 = 2π √(m/k), T2 = 2π √(mg/k)
C.	T1 = T2 = 2π √(m/k)
D.	T1 = 2π √(m/k), T2 = 2π √(k/mg)
Answer» D. T1 = 2π √(m/k), T2 = 2π √(k/mg)

Discussion

Explore topic-wise MCQs in Physics Questions and Answers.

Two simple pendulums of the same length are released from 10° & 20° respectively. Select the correct statement.

A spring block system is on a horizontal surface. The block is compressed by 10cm. What should be the coefficient of friction between the block and ground such that the block comes to a stop at the mean position? Mass of block = 0.5kg & spring constant = 3N/m.

A spring block system is on a horizontal plane. If spring constant is 2N/m & mass of block is 1kg. By what amount should the block be extended from equilibrium position such that maximum velocity at mean position is 2m/s?

Let T1 be the time period of a single spring mass system on a horizontal surface. Let T2 be the time period of the same system when hung from the ceiling. What is the expression for T1 & T2?