HARD
10th ICSE
IMPORTANT
Earn 100
Water in a pond appears to be only three – quarters of its actual depth. What property of light is responsible for this observation? Illustrate your answer with the help of a ray diagram. How is the refractive index of water calculated from its real and apparent depth?
Important Questions on Refraction of Light at Plane Surfaces
MEDIUM
10th ICSE
IMPORTANT
Draw a ray diagram to show the appearance of a stick partially immersed in water. Explain your answer.
MEDIUM
10th ICSE
IMPORTANT
A fish is looking at a high plant at the edge of a pond. Will the plant appear to the fish shorter or taller than its actual height? Draw a ray diagram to support your answer.
EASY
10th ICSE
IMPORTANT
An object placed in one medium when seen from the other medium, appears to be vertically shifted. Name two factors on which the magnitude of shift depends and state how does it depend on them.
EASY
10th ICSE
IMPORTANT
A small air bubble in a glass block when seen from above appears to be raised because of:
EASY
10th ICSE
IMPORTANT
An object in a denser medium when viewed from a rarer medium appears to be raised. The shift is maximum for:
MEDIUM
10th ICSE
IMPORTANT
A water pond appears to be deep. If the refractive index of water is , find the actual depth of the pond.
MEDIUM
10th ICSE
IMPORTANT
A coin is placed at the bottom of a beaker containing water (refractive index ) to a depth of . By what height the coin appears to be raised when seen from vertically above?
MEDIUM
10th ICSE
IMPORTANT
A postage stamp kept below a rectangular glass block of refractive index when viewed from vertically above it, appears to be raised by . Calculate the thickness of the glass block.
