The study of the movements and relative positions of celestial bodies is called:
- (A) Astrology
- (B) Neurology
- (C) Histology
- (D) None of these
- (A) Astrology
Which of the following helps in clotting of blood?
- (A) Vitamin A
- (B) Vitamin D
- (C) Vitamin K
- (D) None of these
- (C) Vitamin K
Silicon is an elemental semi-conductor known as:
- (A) Indirect band gap material
- (B) Direct
- (C) Both (A & B)
- (D) None of these
- (A) Indirect band gap material
Optical fiber works on the principle of:
- (A) Cylindrical dielectric wave guide
- (B) Process of total internal reflection
- (C) Both (A & B)
- (D) None of these
- (B) Process of total internal reflection
Air bubble in water shines because of the phenomenon of:
- (A) Dispersion
- (B) Refraction
- (C) Total Internal Reflection
- (D) None of these
- (C) Total Internal Reflection
The flow of heat from a hot body to a cold body is an example of:
- (A) Adiabatic process
- (B) Isothermal process
- (C) Irreversible process
- (D) None of these
- (C) Irreversible process
Cooling agent in nuclear reactor is:
- (A) Heavy water
- (B) Cadmium
- (C) Oxygen
- (D) None of these
- (A) Heavy water
The lightning conductor or rod used for protecting buildings from lightning is made up of:
- (A) Copper
- (B) Iron
- (C) Aluminum
- (D) None of these
- (A) Copper
What is “Viticulture”?
- (A) Cultivation of tobacco
- (B) Cultivation of grapes
- (C) Growing small plants
- (D) None of these
- (B) Cultivation of grapes
Those plants who get food from other plants instead of soil are called:
- (A) Parasite
- (B) Autotroph
- (C) Insectivorous
- (D) None of these
- (A) Parasite