Question

bottom of glass filled with water appears raised when seen from above.explain why ?

Answer 1

Due to the refraction of light, the water appears higher than its actual level when seen from above. This is a phenomenon due to which a pencil appears bent too. The light entering from denser to lighter medium bends and the this causes the refraction of light 

Answer 2

Explanation:

due to reflection of rays The moment of inertia (I) of a body is a measure of its ability to resist change in its rotational state of motion. Consider a triangular lamina of base (b), altitude (h) and mass (M).