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What is the Directionality of LASER? Directionality: Laser emits light which is highly directional. Laser light is emitted like a relatively narrow beam in an exact direction.
How comes the word physics?
Whenever there is a relative speed among a source of sound and the listener, the apparent frequency of sound listen by the listener is dissimilar from the real frequency of sound e
Thomson experiment; Kelvin effect (Sir W. Thomson [later Lord Kelvin]): While an electric current pass through a conductor whose ends are maintained at distinct temperatures,
Electrostatic shielding/screening is the phenomenon of protecting a particular region of space from external electric field. Sensitive instruments and appliances are affected serio
Two speakers are driven by the same oscillator whose frequency is f. They are located a distance d from each other on a vertical pole. A man walks straight toward the lower speaker
why the direction of centripetal force isnot marked in diagram
The SI unit of pressure is the: a) Torr b) Dyne per centimeter squared c) Atmosphere d) Pascal Ans: The SI unit of pressure is the Pascal.
Distinguish among diamagnetic and ferromagnetic materials in respect of their (i) intensity of magnetisation, (ii) behaviour in a non-uniform magnetic field and (iii) susceptibilit
Radio waves and microwaves: What are microwaves and radio waves? Ans: Microwaves: 1. The wavelength ranges from 10μm to10m 2. Commonly produced by Electromagnetic osc
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