EASY
10th Bihar Board
IMPORTANT
Earn 100

Which one of the following mirrors have positive focal length?

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Important Questions on Light - Reflection and Refraction

EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 10 - Light - Reflection and Refraction>Bihar Board-2019>Q 7
Which one of the following media has maximum speed of light?
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 10 - Light - Reflection and Refraction>Bihar Board-2019>Q 8
What is the SI unit of magnification produced by a lens?
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 10 - Light - Reflection and Refraction>Bihar Board-2019>Q 9
State and explain the laws of refraction of light.
MEDIUM
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 10 - Light - Reflection and Refraction>Bihar Board-2019>Q 10
An object 5 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position of the image, the nature of the image and size.
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 10 - Light - Reflection and Refraction>Bihar Board-2020>Q 11
If the image of an object is always erect for any distance of the object in front of the mirror, then the mirror is :
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 10 - Light - Reflection and Refraction>Bihar Board-2020>Q 12
Which of the following mirrors is used in the headlight of a car?
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 10 - Light - Reflection and Refraction>Bihar Board-2020>Q 13
Which of the following has the highest refractive index?
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 10 - Light - Reflection and Refraction>Bihar Board-2020>Q 14
Which of the following lenses is known as converging lenses?