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The waves which needs medium for their propagation are known as mechanical waves.
Example : Waves on string and spring, waves on water surface, sound waves, seismic waves.
What do you understand by "Absorption coefficient"? which is a better absorber of sound, glass or fibre glass?
Fusion Reaction: In nuclear fusion light nuclei are brought together to form a relation heavier nucleus. They energy free in nuclear fusion is larger than that free in fission.
what is resistor filter?
The neutrons and protons in a stable nucleus are held together by nuclear forces and energy is required to pull them infinitely apart (or the similar energy is released during the
With a neat and clean diagram illustrate in brief the TIR. Describe critical angle and mention the two conditions for TIR.
When a body is heated, it expands in terms of area, length & temperature and volume rises. In a solid, molecules may only have thermal agitation. As temperature of a object enhance
Explain Force Diagrams and Addition of Forces If you have a piano and your friend offers to help move it, would it be more helpful for him to push with 100 Newtons on the
A rocket weighs 9800N. What applied force gives it a vertical acceleration of 4m/sec/sec?
A sensitive beam balance The materials required for this balance contain a clothes peg, a knitting needle about 12 in. long, two pins or needles and a support like as a milk bo
Q. Dissimilarity between an intrinsic and extrinsic semiconductor? Answer:- Semiconductors permit only a little amount of light to pass through them. They are of two n-kin
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