# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1838 - 1841 of 2320

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## Question number: 1838

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MCQ▾

### Question

To determine the equivalent resistance of two resistors when connected in series, a student arranged the circuit components as shown in the diagram. But he did not succeed to achieve the objective.

Which of the following mistakes has been committed by him in setting up the circuit?

### Choices

Choice (4)Response

a.

Terminals of voltmeter are wrongly connected

b.

Position of ammeter is incorrect

c.

Terminals of ammeter are wrongly connected

d.

Position of voltmeter is incorrect

## Question number: 1839

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MCQ▾

### Question

The mean distance of mars from sun is 1.213 times the distance of the earth from the sun. The period of revolution of mars around sun will be

### Choices

Choice (4)Response

a.

1.34 earth year

b.

4.35 earth year

c.

1.05 earth year

d.

2.35 earth year

## Question number: 1840

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MCQ▾

### Question

The potential energy of gravitational interaction of a point mass m and a thin uniform rod of mass M and length l, if they are located along a straight line at a distance a from each other is-

### Choices

Choice (4)Response

a.

b.

c.

d.

## Passage

A plate was cut from a quartz crystal and is used to control the frequency of an oscillating electrical circuit. Longitudinal standing waves are set up in the plate with displacement antinodes at opposite faces.

The fundamental frequency of vibration is given by the equation . Here s is thickness of the plate and density of quartz is 2658.76 kg/m 3.

## Question number: 1841 (1 of 2 Based on Passage) Show Passage

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MCQ▾

### Question

If the quartz plate is vibrating in 3 rd harmonic while measuring the frequency of 1.2 ⨯ 10 6 Hz, then the thickness of the plate is,

### Choices

Choice (4)Response

a.

71.75cm

b.

0.07 cm

c.

7.175 cm

d.

6.02 cm

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