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Answer:
c
Explanation:
wavelength shorter means energy is higher
the wavelength
radio waves>microwave>infrared rays>gamma rays
Answer:
The torque is 0.31 Nm.
Explanation:
Electrical energy, E = 8400 J
time, t = 1 min
Angular speed, w = 2900 rpm = 303.53 rad/s
efficiency = 2/3 of input power
The toque is given by

Answer:
OptionC)
Explanation:
As muscle size increase gradually when we become adolsence and it increases in boys..
Explanation:
Since, the gravity in moon is 1/6th that of earth.
Therefore,
5m ladder if climed on moon will be equal to 1/6th that on earth .i.e 5×1/6=0.83m