Physics
Which of the following is not a representation of electric power? 1. I<sup>2</sup>R 2. 3. VI 4. I<sup>2</sup>V
Related Questions
Fuse is an alloy of
- lead and copper
- copper and tin
- lead and tin
- None of the above
For cooking of food, which of the following types of utensil is most suitable?
- High specific heat and low conductivity
- High specific heat and high conductivity
- Low specific heat and low conductivity
- Low specific heat and high conductivity
(a) Write the two uses of radioactivity.
(b) A crow-bar of length 80 cm has its fulcrum situated at a distance of 10 cm from the load. Calculate the mechanical advantage of the crow-bar.
(c) Why fission nuclei undergo β-decay?
A person standing 22 m away from a wall produces a sound and receives the reflected sound.
(a) In what time interval, he receives the reflected sound, if speed of sound in air is 330 ms-1 ?
(b) At which distance should he stand to receive the sound in 0.12 s?