April 24, 2024
Which of the following are living characters of a virus?
1. They respond to heat, chemicals and radiations.
2. They reproduce inside the host cells and produce copies of themselves.
3. They are inactive when present freely in the environment. 4. They can be crystallized and stored for a very long time.
Choose the correct answer using the codes given below:
  • (A) 1 and 2 only
  • (B) 2 and 3 only
  • (C) 1 and 4 only
  • (D) 3 and 4 only
What are the female hormones secreted by ovaries in human beings?
  • (A) Testosterone and estrogen
  • (B) Estrogen and progesterone
  • (C) Testosterone and progesterone
  • (D) Estrogen and prolactin
Assertion : Force is a derived physical quantity.
Reason : Force cannot be derived from the fundamental physical quantities.
  • (A) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
  • (B) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
  • (C) If Assertion is correct but Reason is incorrect.
  • (D) If Assertion is incorrect but Reason is correct.
Flow velocities in an incompressible fluid can be measured with which one of the following?
  • (A) Barometer
  • (B) Venturi tube
  • (C) Strain gauge
  • (D) Manometer
The chemical used as fixer in the photography is –
  • (A) Sodium thiosulphate
  • (B) Borax
  • (C) Sodium tetrathionate
  • (D) Ammonium molybdate 
Which organelle in the cell, other than the nucleus, contains DNA ?
  • (A) Centriole
  • (B) Lysosome
  • (C) Golgi apparatus
  • (D) Mitochondrion
Assertion (A) : A myopic person is advised to use concave lens.
Reason (R) : The eye lens of a myopic person focuses the parallel rays coming from distant objects in front of the retina.
  • (A) Both A and R are individually true and R is the correct explanation of A
  • (B) Both A and R are individually true but R is NOT the correct explanation of A
  • (C) A is true but R is false
  • (D) A is false but R is true
Light Emitting Diode (LED) converts
  • (A) Light energy into electrical energy
  • (B) Electrical energy into light energy
  • (C) Thermal energy into light energy
  • (D) Mechanical energy into electrical energy
Which one of the following elements exist in liquid state at room temperature?
  • (A) Hydrogen
  • (B) Bromine
  • (C) Oxygen
  • (D) Iodine
Match the column - I and Column - II.
Column-I = Column-II
A. Myopia = P. Convex lens
B. Hypermetropia = Q. Concave lens
C. Presbyopia = R. Cylindrical lens
D. Astigmatism = S. Bifocal Lens
  • (A) A-P; B-Q; C-S; D-R
  • (B) A-P; B-Q; C-R; D-S
  • (C) A-Q; B-P; C-S; D-R
  • (D) A-Q; B-P; C-R; D-S

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