EXERCISES

Author:Jharkhand Board

Jharkhand Board Science Solutions for EXERCISES

Simple step-by-step solutions to EXERCISES questions of The Human Eye and the Colourful World from Science: Class 10. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from EXERCISES with Hints & Solutions

MEDIUM
10th Jharkhand Board
IMPORTANT

The far point of a myopic person is 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?

MEDIUM
10th Jharkhand Board
IMPORTANT

Make a diagram to show how hypermetropia is corrected. The near point of a hypermetropic eye is 1 m. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25 cm.

EASY
10th Jharkhand Board
IMPORTANT

Why is a normal eye not able to see clearly the objects placed closer than 25 cm?

EASY
10th Jharkhand Board
IMPORTANT

What happens to the image distance in the eye when we increase the distance of an object from the eye?

EASY
10th Jharkhand Board
IMPORTANT

Why do stars twinkle?

MEDIUM
10th Jharkhand Board
IMPORTANT

Explain why the planets do not twinkle.

EASY
10th Jharkhand Board
IMPORTANT

Why does the Sun appear reddish early in the morning?

EASY
10th Jharkhand Board
IMPORTANT

Why does the sky appear dark instead of blue to an astronaut?