What do we call when the sound of frequency will be below 20 Hz...? Mcqs

Latest MCQs

What do we call when the sound of frequency will be below 20 Hz...?

(A) Audio sounds
(B) Infrasonic

(C) Ultrasonic
(D) Supersonics

Latest MCQs

Which of the following chemicals is not found in tobacco smoke...?

(A) Chlorine bleach
(B) Rocket fuel

(C) Nail polish remover
(D) Barbecue lighter fluid

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Which stone floats on water...?

(A) Pumice stone
(B) Lime stone

(C) Basalt stone
(D) Quartzite stone

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Which variety of glass is heat resistant...?

(A) Bottle glass
(B) Flint glass

(C) Hard glass
(D) Pyrex glass

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Pupa of a bee is also called...?

(A) Egg
(B) Cocoon

(C) Adult
(D) Grub

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Kidney disease happens due to overdose of...?

(A) Vitamin A
(B) Vitamin B

(C) Vitamin C
(D) Proteins

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Plants absorb____during day time to prepare their food....?

(A) Carbon Dioxide
(B) Oxygen

(C) Nitrogen
(D) Hydrogen

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A pulsar is a rapidly spinning neutron star which emits:...?

(A) A blinding light when it aligns with the planets
(B) Radio waves detectable from Earth

(C) A gravitational pull which attracts high energy dust particles
(D) Enough energy to power itself indefinitely

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Bats can also fly in dark because they are capable of taking the help of _________...?

(A) Ultraviolet Waves
(B) Ultrasonic Waves

(C) Electromagnetic Waves
(D) Special Retina

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T.V. transmission cannot cover a very large area because...?

(A) the strength of T.V. waves is very limited
(B) picture cannot be transmitted clearly after a specific distance

(C) the shape of the earth is spherical
(D) the air is not a good conductor of light and sound/waves

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