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FRAME OF REFERENCE:
"A set of reference axis needed to locate the position of an object in space is known as a frame of reference"
Rotating a Mirror and the Reflected Ray Describing in which when a mirror is rotated through an angle, the reflected ray is rotated through twice that angle. You might drag th
Q. What percentage of a given radioactive substance will be left after 5 half -life periods? The residual part of radioactive substance = ( ½ ) 5 Therefore the percentage
Q. What do you mean by Time Dilation? To an observer a moving clock always appears to run slower. The time interval between two events occurring at a given point in space in a
When wave emitted by a self luminous object is dispersed by a prism to get the spectrum, the spectrum is known as emission spectrum.
What are the properties of ultrasonic waves? Properties of Ultrasonic Waves are as follows: a. Ultrasonic waves are acquiring frequencies higher than20 KHz and therefore th
a projectile is fired from a gun has an initial velocity of 90.0 Km/h at an angle of 60.0 degrees to the horizontal. When the projectile is at top of its trajectory an internal exp
Q. Illustrates the evidence is there supporting the Big Bang theory? Answer:- In brief the universe is expanding. Each of the galaxies we have observed that are utmost awa
what is a dual power supply?
Q. What is ionisation potential energy? For hydrogen atom the energy necessary to remove an electron from first orbit to its outermost orbit (n=∞) is 13.6-0 = 13.6eV. This ene
As CPH has mass, how massless photon is made of two or more CPH? Answer; The Photon carries energy and energy has mass. But the rest mass of photon is aero. No one can see phot
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