NEET Physics: Questions 1837 - 1840 of 2098

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Question number: 1837

» Experimental Skills » Multimeter

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.

Circuit diagram for determine two resistors.

Circuit Diagram for Determine Two Resistors.

To determine the equivalent resistance of two resistors when connected in series, a student arranged given circuit.

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.

Position of voltmeter is incorrect

d.

Terminals of ammeter are wrongly connected

Question number: 1838

» Gravitation » Kepler's Laws of Planetary Motion

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.

4.35 earth year

b.

1.05 earth year

c.

2.35 earth year

d.

1.34 earth year

Question number: 1839

» Gravitation » Gravitational Acceleration

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.

U=GMm(1a1a+l)

b.

U=GMma

c.

U=GMmlloge(a+la)

d.

U=GMmaloge(a+la)

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 f0=2.87×104s . Here s is thickness of the plate and density of quartz is 2658.76 kg/m 3.

Question number: 1840 (1 of 2 Based on Passage) Show Passage

» Oscillations and Waves » Harmonics

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.

7.175 cm

b.

0.07 cm

c.

6.02 cm

d.

71.75cm

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