EASY
10th CBSE
IMPORTANT
Earn 100

A student sitting on the last bench can read the letters written on the blackboard but is not able to read the letters written in his textbook. Which of the following statements is correct?

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Important Questions on The Human Eye and Colourful World

HARD
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>NCERT EXEMPLAR PROBLEMS>Q 3
A prism ABC (with BC as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in the figure. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky?  
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>NCERT EXEMPLAR PROBLEMS>Q 4
At noon the sun appears white as:
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>NCERT EXEMPLAR PROBLEMS>Q 5
Which of the following phenomena of light are involved in the formation of a rainbow?
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>NCERT EXEMPLAR PROBLEMS>Q 6
Twinkling of stars is due to atmospheric: 
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>NCERT EXEMPLAR PROBLEMS>Q 7
The clear sky appears blue because: 
HARD
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>NCERT EXEMPLAR PROBLEMS>Q 8
Which of the following statements is correct regarding the propagation of light of different colours of white light in the air? 
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>NCERT EXEMPLAR PROBLEMS>Q 9
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all the colours, the red light: 
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>NCERT EXEMPLAR PROBLEMS>Q 10
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?