The coefficient of absorption of a surface is 0.6. When radiant energy is incident on the surface at `1500 J//min`, the energy reflected in 5 minutes is 450 J. Find the coefficient of reflection and transmission of the surface.

The coefficient of absorption of heat surface of a body is 0.68. When 100 calories of heat is incident on the body, 27 calories are reflected from the surface. Find the coefficient of transmission of the body.

Heat energy is incident on the surface at the rate of 1000 J/min. If coefficient of absorption is 0.8 and coefficient of reflection is 0.1 then heat energy transmitted by the surface in 5 minute is

Out of 10J of radiant energy incident on a surface, the energy absorbed by the surface is 2 J and the energy reflected is 7 J. Then, coefficient of transmission of the body is

Radiant energy is incident on the body at a rate of 1500 J//min . If coefficient of emission of a body is 0.9 and coefficient of reflection is 0.06. Find the radiant energy:- reflected.

Radiant energy is incident on the body at a rate of 1500 J//min . If coefficient of emission of a body is 0.9 and coefficient of reflection is 0.06. Find the radiant energy:- absorbed.

When 150 J of energy. is incident on surface of a body, 15 J of energy is reflected by it. If the coefficient of absorption is 0.6, then the amount of energy transmitted will be

Fill in the blanks : When light rays are incident on a smooth surface , they undergo ……….. Reflection .

The coefficient of absorption and reflection of the surface of a body are 0. 75 and 0.20 respectively. If 200 calorie of radiant heat is incident on the surface of the body, then the beat absorbed is

The coefficient of absorption and reflection on the surface of the thin plate are 0.74 and 0.22, respectively. If 184 calories of radiant heat is incident on the surface of the plate, find the quantities of heat absorbed, reflected, and transmitted.

The coefficient of static friction between a block of mass 0.25 kg and a horizontal surface is 0.4. Find the horizontal force applied to it.