# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1064 - 1068 of 2320

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## Question number: 1064

» Ray Optics » Reflection and Refraction of Light » Smooth Surface

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MCQ▾

### Question

A girl stands at a distance 30 cm from the mirror. She is able to see her erect image but of 1/5 height of actual height. The mirror will be:

### Choices

Choice (4)Response

a.

Plane convex mirror

b.

Concave mirror

c.

Plane mirror

d.

Convex mirror

## Question number: 1065

» Ray Optics » Reflection and Refraction of Light » Spherical Surface

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Assertion-Reason▾

### Assertion (Ꭺ)

When an object is placed between two plane parallel mirrors. Then all the images found are of different intensity.

### Reason (Ꭱ)

In case of plane parallel mirrors, only two images are possible.

### Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

## Question number: 1066

Edit
MCQ▾

### Question

An equiconvex lens has a power of 5 diopter. If it is made of glass of refractive index 1.5 then the radius of the curvature of each surface will be

### Choices

Choice (4)Response

a.

10 cm

b.

5 cm

c.

zero

d.

20 cm

## Question number: 1067

Edit
MCQ▾

### Question

In case of thin lens of focal length an object is placed at a distance from first focus and its image is formed at a distance from the second focus, find

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 1068

Edit
MCQ▾

### Question

A ball is dropped from a height of 20 m above the surface of water in a lake. The refractive index of water is . A fish inside the lake, in the line of fall of the ball, is looking at the ball. At an instant, when the ball is 12.8 m above the water surface, the fish sees the speed of ball is,

### Choices

Choice (4)Response

a.

b.

c.

d.

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