Oscillations and Waves (NEET Physics): Questions 71 - 75 of 192

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Question number: 71

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

MCQ▾

Question

A spring of force constant k is cut into two pieces such that one piece is double the length of the other. Then the short piece will have a force constant of

Choices

Choice (4) Response

a.

6k

b.

(23)k

c.

3k

d.

(32)k

Question number: 72

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

MCQ▾

Question

A spring of force constant k is cut into two pieces such that one piece is double the length of the other. Then the long piece will have a force constant of

Choices

Choice (4) Response

a.

6k

b.

(23)k

c.

3k

d.

(32)k

Question number: 73

» Oscillations and Waves » Simple Harmonic Motion » Energy

Assertion-Reason▾

Assertion (Ꭺ)

The graph of total energy of a particle in SHM w. r. t, position is a straight line with zero slope.

Reason (Ꭱ)

Total energy of particle in SHM remains constant throughout its motion.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Ꭺ is false but Ꭱ is true

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is true but Ꭱ is false

Question number: 74

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

The length of a simple pendulum is increased by 5%. Its time period will

Choices

Choice (4) Response

a.

Increase by 2.5%

b.

Increase by 2%

c.

Decrease by 5%

d.

Increase by 3.5%

Question number: 75

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

The time period of a simple pendulum of length L as measured in an elevator descending with acceleration g3 is

Choices

Choice (4) Response

a.

π3Lg

b.

2π3L2g

c.

2π2L3g

d.

2π3Lg

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