If the length of a simple pendulum is halved then its period of oscillation is
1). doubled
2). halved
3). increased by a factor
4). decreased by a factor
1. It takes much longer to cook food in the hills than in the plains, because
2. The device used to convert solar energy into electricity is
3. Which of the following is/are part of the Classical Physics?
5. The radiation initially produced in fluorescent tube is
6. Period of oscillation of 3 cm microwaves in seconds is
7. The tidal waves on sea is mainly due to
8. In projectile motion, the total flight time is _______.