NCERT EXEMPLAR PROBLEMS
Narendra Kumar Physics Solutions for Exercise - NCERT EXEMPLAR PROBLEMS
Simple step-by-step solutions to NCERT EXEMPLAR PROBLEMS questions of The Human Eye and Colourful World from Science Part-I NEW ERA PHYSICS Textbook for Class X. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from NCERT EXEMPLAR PROBLEMS with Hints & Solutions
A student sitting at the back of the classroom cannot read clearly the letters written on the blackboard. What advice will a doctor give to her? Draw ray diagram for the correction of this defect.
How will you use two identical prisms so that a narrow beam of white light incident on one prism emerges out of the second prism as white light? Draw the diagram.
Explain the structure and functioning of human eye. How are we able to see nearby as well as distant objects?
When do we consider a person to be myopic or hypermetropic? Explain using diagrams how the defects associated with myopic and hypermetropic eye can be corrected?
Explain the refraction of light through a triangular glass prism using a labelled ray diagram. Hence, define the angle of deviation.
How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
Explain the phenomenon of dispersion of white light through a glass prism, using suitable ray diagram.
How does refraction take place in the atmosphere? Why do stars twinkle but not the planets?
