STATEMENT-1: When an electrical heater is switched on, the colour of the filament gradually changes from red to yellow to almost white.
STATEMENT-2: Wien's displacement law states that `lambda_(m)T = b` (constant).

Assertion : Blue star is at high temperature than red star. Reason : Wein's displacement law states that T prop (1//lambda_(m)) .

Assertion : Blue star is at high temperature than red star. Reason : Wein's displacement law states that T prop (1//lambda_(m)) .

STATEMENT-1: When a closed organ pipe vibrates, the pressure of the gas at the closed end remians constant. STATEMENT-2: In a stationary-wave system, displacement nodes are pressure antinodes, and displacement antinodes are pressure nodes.

Statement- 1 : When an electric fan is switched on in a closed room, the air of the room is cooled. Statement- 2 : When fan is switched on, the speed of the air molecules will increase.

Statement- 1 : When an electric fan is switched on in a closed room, the air of the room is cooled. Statement- 2 : When fan is switched on, the speed of the air molecules will increase.

Statement- 1 : When an electric fan is switched on in a closed room, the air of the room is cooled. Statement- 2 : When fan is switched on, the speed of the air molecules will increase.

STATEMENT - 1 : If person walks in a straight line and never changes direction, then the distance and the displacement will have exactly the same magnitude. STATEMENT - 2 : The phrase ''20 m, northwest'' likely describe the distance for a motion. STATEMENT - 3 : The phrase ''20 m, west'' likely describes the displacement for a motion

STATEMENT - 1 : If person walks in a straight line and never changes direction, then the distance and the displacement will have exactly the same magnitude. STATEMENT - 2 : The phrase ''20 m, northwest'' likely describe the distance for a motion. STATEMENT - 3 : The phrase ''20 m, west'' likely describes the displacement for a motion

Assertion : When temperature of a body is increased, in radiant energy, number of low wavelength photons get increased. Reason : According to Wien's displacement law lambda_m prop 1/T .

Assertion : When temperature of a body is increased, in radiant energy, number of low wavelength photons get increased. Reason : According to Wien's displacement law lambda_m prop 1/T .