Question
Which of the following is most commonly used in
fluorescent lamp?Solution
Low pressurised mercury vapour and Argon gas is filled in fluorescent lamp.
Which of the following is caused due to the Newton’s first law of motion?
I. When a motorcar makes a sharp turn at a high speed, we tend to ...
Angle of friction and angle of repose are
Find the resistance when a current of 2 A flows under a voltage of 10 V. Â
A stream of water flowing horizontally with a speed of 20 m/s pushes out of a tube of cross-sectional area 10-1m2 and hits at a v...
In a diffraction experiment using a single slit, the angular width of central maximum decreases when:
If lift is going up with acceleration, the apparent weight of a body is -
What is the minimum escape velocity of rocket to be launched into space?
A sound wave has a frequency of 500 Hz and wavelength of 0.68 m. What is the speed of sound?
Total mechanical energy =
A string of length L is fixed at both ends. It supports a standing wave with 3 antinodes. If the speed of the wave on the string is v, what is the freq...
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