# Ray Optics-Reflection and Refraction of Light (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 12 - 15 of 24

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## Question number: 12

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

MCQ▾

### Question

In an experiment to determine the focal length (f) of a concave mirror by the u - v method, a student places the object pin A on the principal axis at a distance x from the pole P. The student looks at the pin and its inverted image from a distance keeping his/her eye in line with PA. When the student shifts his/her eye towards left, the image appears to the right of the object pin. Then,

### Choices

Choice (4) Response

a.

x < f

b.

x = 2 f

c.

f < x < 2f

d.

x > If

## Question number: 13

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

Assertion-Reason▾

### Assertion (Ꭺ)

The size of the mirror doesn’t affect the nature of the image.

### Reason (Ꭱ)

Small mirror always forms a virtual image.

### Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Ꭺ is false but Ꭱ is true

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: 14

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

Assertion-Reason▾

### Assertion (Ꭺ)

Convex mirror is preferred to a plane mirror, in vehicles, to observe traffic coming from behind.

### Reason (Ꭱ)

A convex mirror provides wider field of view, then a plane mirror of the same size.

### Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

## Question number: 15

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

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.

Concave mirror

b.

Convex mirror

c.

Plane convex mirror

d.

Plane mirror