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Cathode rays are made up of:
(1) Positively charged particles
(2) Negatively charged particles
(3) Neutral particles
(4) None of these
Ans: (2)Negatively charged particles
a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/
What is the relationship among the period and the square root of the length? The graph is linear, so the period is proportional to the square root of the length of the string.
Calculate the heat-removal factor and the duct flow factor for a collector having an overall heat loss coefficient of 6 W/ (m 2 .K) constructed of aluminum fins and tubes. Tube to
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Melinex film can be interleaved with paper. The material is then silvered. It is the rolled to form capacitor. High voltage capacitors are sealed to avoid corona. These capacitors
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If a traveling wave is a sin or cos function of (x± vt) the wave than it is said to be harmonic or plane progressive wave.
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