2. Which of the following is used to split white light into different colours?
(1) Glass slab
(2) Convex lens
(3) Concave lens
(4) Prism
Correct Answer
Wrong Answer
3. Nuclear reactors used to produce electricity are based on –
(1) Nuclear fission
(2) Nuclear fusion
(3) Cold fusion
(4) Superconductivity
Correct Answer
Wrong Answer
4. Energy that is produced commercially from coal is called –
(1) Light energy
(2) Kinetic energy
(3) Thermal energy
(4) Potential energy
Correct Answer
Wrong Answer
5. Which among the following is not a characteristic of transition metals?
(1) Tendency to gain electrons
(2) Low electro negativity
(3) low ionization energy
(4) Malleability
Correct Answer
Wrong Answer
6. Which one of the following is not a function of the liver?
(1) Regulation of blood sugar
(2) Enzyme activation
(3) Detoxiation
(4) Reproduction
Correct Answer
Wrong Answer
7. The source of the Sun's energy is the process of –
(1) Photoelectric emission
(2) Nuclear fission
(3) Nuclear fusion
(4) Thermionic emission
Correct Answer
Wrong Answer
8. A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be -
(1) a parabola
(2) a horizontal straight line
(3) a vertical straight line
(4) a circle
Correct Answer
Wrong Answer
9. Which of the following is a non-renewable source of energy?
(1) Biogas
(2) Solar
(3) Wind
(4) Coal
Correct Answer
Wrong Answer
10. Solar energy is converted into chemical energy during –