The incident ray, reflected ray and normal to the reflecting surface at the incident point all never lie in same plane.

Answer: Option B

1. Which are the primary Colours ?

Answer: Option D

Explanation:

Red, Green, Blue are primary colours. All the colours can be produced by them by mixing in different proportions. Interesting :)

Answer: Option B

Answer: Option B

Explanation:

Orbital speed of a satellite is independent of its mass.

In a static liquid at same horizontal level, pressure is more at centre
In a static liquid at same horizontal level, pressure is less at centre.
In a static liquid at same horizontal level, pressure is same at all points
In a static liquid at same horizontal level, pressure is different at all points

Answer: Option C