PHYSICS ONE LINER SET 06

PHYSICS ONE LINER SET 06

1. Who firstly predicated the existence of electromagnetic waves? Maxwell
 
2. The intensity of a magnetic field is defined as the force experienced by which pole?
Unit north pole
 
3. In which process, a nucleus spontaneously breaks down by emitting radiation? Radioactive decay
 
4. Fluorescent tubes are fitted with a choke. What does the choke coil? Reduces current in the circuit
 
5. For television broadcasting, what frequency is employed normally? 30 – 300 MHz
 
6. Which effect shows particle nature of light? Photoelectric effect
 
7. Activated charcoal is employed to remove colouring matter from pure substance, it work?
Adsorption
 
8. Optic fibres are mainly used for which purpose? Communication
 
9. Which rays are most penetrating? gama-rays
 
10. Which common devices works on the basis of the principle of mutual induction? Transformer