- (A) 10 Hz to 10,000 Hz.
- (B) Â 20 Hz to 20,000 Hz.
- (C) Â 30 Hz to 30,000 Hz.
- (D) Â 40 Hz to 40,000 Hz.
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- (A) 2%
- (B) 3%
- (C) 7%
- (D) 8%
- (A) Phosphorous
- (B) Bromine
- (C) Chlorine
- (D) Helium
- (A) cerebellum
- (B) cerebrum
- (C) hypothalamus
- (D) medulla
- (A) Aristotle
- (B) Gregor Joghn Mandle
- (C) Theophrastus
- (D) Corlous Linnaeous
- (A) Retina
- (B) Iris
- (C) Cornea
- (D) Optic nerve
- (A) Bronchiole
- (B) Larynx
- (C) Pharynx
- (D) Trachea
- (E) None of these
- (A) An equal and opposite pressure acts from inside
- (B) of the height of a man
- (C) of gravity
- (D) Earth pulls the man upward
- (E) None of these
- (A) Nuclear fusion
- (B) nuclear fission
- (C) Burning hydrogen
- (D) None of these
- (A) Protons
- (B) Neutrons
- (C) Electrons
- (D) Gamma rays
