Parsec' is the unit measurement of
1). Density of stars
2). Astronomical distance
3). Brightness of heavenly bodies
4). Orbital velocity of giant stars
1. An image formed by a plane mirror, that cannot be obtained on a screen is called ________
2. Ohm's law is valid in case of
3. Heat flows as a result of difference of ________
4. Which of these waves can be polarized ?
5. In a nuclear reactor, one of the following is used as a fuel.
8. When a vehicle passes, TV reception gets distorted. This is because