State whether the following statements are True (T) or False (F)
All colours of light travel with the same velocity in air.

State whether the following statements are True (T) or False (F) All colours of light have the same refractive index for air.

State whether the following statements are True (T) or False (F) All colours of light have the same refractive index only for air but different for different transparent media.

State whether the following statements are True (T) or False (F): A cell is a source of electrons.

State wheteher the following statements are True (T) or False (F): All insulators are dielectrics.

State whether the following statements are True (T) or False (F): In Boolean algebra (A+A) = A.

State whether the following statements are True (T) or False (F): Electric field is a scalar field.

State whether the following statements are True (T) or False (F): The charge of a body increases with increases in velocity of the body.

State whether the following statements are True (T) or False (F): A plane mirror rotates with a angular velocity, 'w' then the reflected ray. Rotates with an angular velocity '2w'.

State whether the following statements are True (T) or False (F) : The speed of light in glass is less than the speed of light in water.

State whether the following statements are True (T) or False (F): A cell is a source of energy, other than electrical.