Question
Which of the following has the highest
frequency?Ā ĀSolution
Ultraviolet rays have a higher frequency and energy than visible and infrared light.Ā Ā Electromagnetic spectrum follows: Radio < Infrared < Visible < Ultraviolet < X rays.Ā Ā Higher frequency = shorter wavelength.Ā Ā UV rays can cause skin damage due to their energy.
In which type of wave do the particles of the medium vibrate perpendicular to the direction of wave propagation?Ā Ā
A particle is fired with initial speed 30 m/s and lands back at same horizontal level. If its horizontal range is equal to 4.5 times the vertical height...
If a force is applied to two stationary objects with different masses for the same duration, what will be the same for both objects?
Let the electric field part of an electromagnetic wave is E = {(2.3 N/C) cos [(1.2 rad/m) y + (2.4 Ć 108 rad/s)t]} Ć®.
Compute the...
What does Ohm's Law state?Ā Ā
An object is projected vertically upward from Earth's surface with speedĀ
v 0 = ā(GM/1.5R). The maximum height reached from the center of E...
If resistances R,2R,4R,8Rā¦ are connected in parallel, the equivalent resistance is:
Two sound waves have frequencies 256 Hz and 260 Hz. The beat frequency is:
Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by ā
Which physical quantity has unit āJoule/secondā?Ā Ā
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