EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 21 - Ray Optics>NDA & NA EE 2020 General Ability Test>Q 1

MEDIUM

NDA & NA EE

IMPORTANT

Earn 100

The correct relation between the radius of curvature $R$ and the focal length $f$ of a spherical mirror is _____.

94.74% studentsanswered this correctly

Important Questions on Ray Optics

MEDIUM

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 21 - Ray Optics>NDA & NA EE 2020 General Ability Test>Q 2

A lemon kept in water in a glass tumbler appears to be larger than its actual size. It is because of the _____.

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 21 - Ray Optics>NDA & NA EE 2020 General Ability Test>Q 5

A lens has a power of

+ 2 \cdot 0

Dioptre. Which one of the following statements about the lens is true?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 21 - Ray Optics>NDA & NA EE 2020 General Ability Test>Q 6

The refractive index of fused quartz is

1 \cdot 46

and that of sapphire is

1 \cdot 77 .

If

v_{q}

is the speed of light in quartz and

v_{s}

is the speed of light in sapphire, then which one of the following relations is correct?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 21 - Ray Optics>NDA & NA EE 2020 General Ability Test>Q 7

In case of a concave mirror, if an object is kept between principal focus

F

and pole

P

of the mirror, then which one of the following statements about the image is not correct?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 21 - Ray Optics>NDA & NA EE 2019 Paper 2 General Ability Test>Q 8

Which one of the following statements regarding lenses is not correct?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 21 - Ray Optics>NDA & NA EE 2019 Paper 2 General Ability Test>Q 9

Light rays move in straight lines. But through an optical fibre, they can move in any type of zig-zag path because

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 21 - Ray Optics>NDA & NA EE 2019 Paper 1 General Ability Test>Q 10

The light energy escaping from the sun can be spread by

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 21 - Ray Optics>NDA & NA EE 2019 Paper 1 General Ability Test>Q 11

The focal length of the objective lens of a telescope is

50 cm .

If the magnification of the telescope is

25,

then the focal length of the eyepiece is