# KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics: Questions 43 - 45 of 253

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## Question number: 43

Appeared in Year: 2013

MCQ▾

### Question

A horizontal parallel beam of light passes through a vertical convex lens of focal length 20 cm and is then reflected by a tilted plane mirror so that it converges to a point I. The distance PI is 10 cm.

M is a point at which the axis of the lens intersects the mirror. The distance PM is 10 cm. The angle which the mirror makes with the horizontal is,

### Choices

Choice (4) Response

a.

15°

b.

45°

c.

60°

d.

30°

## Question number: 44

Appeared in Year: 2013

MCQ▾

### Question

Consider the circuit shown in the figure below:

All the resistors are identical. The ratio is,

### Choices

Choice (4) Response

a.

5

b.

6

c.

8

d.

4

## Question number: 45

MCQ▾

### Question

If the current through a resistor in a circuit increases by 4.5%, the power dissipated by the resistor,

### Choices

Choice (4) Response

a.

Increases approximately by 4.5%

b.

Increases approximately by 9%

c.

Increases approximately by 0.66%

d.

Decreases approximately by 9%

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