# NEET Physics: Questions 974 - 978 of 2142

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## Question number: 974

MCQ▾

### Question

The focal length of the lens of the human eye is maximum when it is looking at an object at,

### Choices

Choice (4) Response

a.

Infinity

b.

Very near the eye.

c.

25 cm from the eye

d.

100 cm from the eye

## Passage

A student constructs a series RLC circuit. While operating the circuit at a frequency f she uses an AC voltmeter and measures the potential difference across each device as (∆V R) = 8.8 V, (∆V L) = 2.6V and (∆V C) = 7.4V.

## Question number: 975 (1 of 3 Based on Passage) Show Passage

MCQ▾

### Question

The circuit is constructed so that the inductor is next to the capacitor. What result should the student expect for a measurement of the combined potential difference (∆V L + ∆V C) across the inductor and capacitor?

### Choices

Choice (4) Response

a.

10.0 V

b.

4.8 V

c.

7.4 V

d.

7.8 V

## Question number: 976 (2 of 3 Based on Passage) Show Passage

MCQ▾

### Question

What result should the student expect for a measurement of the amplitude E m of the potential difference across the power supply?

### Choices

Choice (4) Response

a.

18.8 V

b.

13.6 V

c.

4.0 V

d.

10.0 V

## Question number: 977 (3 of 3 Based on Passage) Show Passage

MCQ▾

### Question

What will happen to the value of ( ∆V L) if the frequency is adjusted to increase the current through the circuit?

### Choices

Choice (4) Response

a.

(∆V L) will remain the same regardless of any changes to f.

b.

There is not enough information to answer the question.

c.

(∆V L) will increase.

d.

(∆V L) will decrease.

## Question number: 978

MCQ▾

### Question

A point source of 2 watt is radiating uniformly in all direction in vacuum. Find the amplitude of electric field at a distance 2m from it-

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page