An object placed at the bottom of a well full of clear wa...
An object placed at the bottom of a well full of clear water appears closer to the surface due to?
diffraction
reflection
refraction
polarization
Correct answer is C
Real depth and apparent dept is due to refraction
When a ray of light is incident normally on an air- glass interface, its angle of refraction is ...
Convex spherical mirrors are preferred to plane mirrors as driving mirrors because ...
The angular dispersion of a prism depends on ...
A lamp is rated 240 V, 60 W. Determine the resistance of the lamp when lit? ...
Which of the following is TRUE of light and sound waves? ...
The viscosity of a fluid depends on the following factors except the? ...