“LASER” is used for communication in the form of:
- (A) Heat
- (B) Light
- (C) Electricity
- (D) Sound
- (B) Light
The type of lens found in human eye is:
- (A) Biconcave
- (B) Cylindrical
- (C) Biconvex
- (D) Plano convex
- (C) Biconvex
Heat from the sun is received by the Earth through:
- (A) Conduction
- (B) Convection
- (C) Radiation
- (D) Reflection
- (C) Radiation
Memory loss due to brain injury is known as:
- (A) Amnesia
- (B) Paralysis
- (C) Schizophrenia
- (D) Bi-polar
- (A) Amnesia
Which of the following acids, secreted internally, helps in digestion?
- (A) Sulfuric acid
- (B) Hydrochloric acid
- (C) Acetic acid
- (D) Tartaric acid
- (B) Hydrochloric acid
Chemical name of synthetic vinegar is:
- (A) Sodium chloride
- (B) Tartaric acid
- (C) Sodium acetate
- (D) Acetic acid
- (D) Acetic acid
Acetic acid is also known as:
- (A) Folic acid
- (B) Tartaric acid
- (C) Ethanoic acid
- (D) Amino acid
- (C) Ethanoic acid
The primary symptom of “Amnesia” is related to:
- (A) Loss of memory
- (B) Loss of hearing
- (C) Loss of teeth
- (D) Loss of taste
- (A) Loss of memory
As the amount of clay in a soil increases, its water retaining capacity:
- (A) Decreases
- (B) Increases
- (C) Remains constant
- (D) None of these
- (B) Increases
The raw material used in the manufacture of foam (mattresses, cushions, etc.) is:
- (A) Methanol
- (B) Ethanol
- (C) Phenol
- (D) None of these
- (B) Ethanol