The scientist who first sent electromagnetic waves to distant places is...? Mcqs

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The scientist who first sent electromagnetic waves to distant places is...?

(A) James Clerk Maxwell
(B) Heinrich Hertz

(C) Thomas Alva Edison
(D) John Logie Baird

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Latest MCQs

How many Number of eyes found in Earthworm...?

(A) One
(B) Many

(C) No eye
(D) Two

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Latest MCQs

Ozone layer is part of ______...?

(A) Mesosphere
(B) Stratosphere

(C) Thermosphere
(D) Troposphere

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The chemicals released from one cell and carried to signal some distant cell through blood are ______...?

(A) Neurotransmitters
(B) Enzymes

(C) Hormones
(D) All of these

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Which one among the following is not an example of pneumatic system...?

(A) Spray gun
(B) Bicycle pump

(C) Vacuum cleaner
(D) Car brake

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The normal range of the number of white blood cells in a microliter of blood is between _________ ...?

(A) 2,500 and 09,300
(B) 4,500 and 10,000

(C) 4,900 and 12,000
(D) None of these

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People living in high altitudes (like mountains) usually have a _________...?

(A) smaller number of Red Blood Cells
(B) larger number of Red Blood Cells

(C) smaller number of White Blood Cells
(D) larger number of White Blood Cells

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Which of the following is the main difference between electromagnets and bar magnets...?

(A) Electromagnets are stronger than bar magnets
(B) Bar magnets are permanent, but electromagnets are temporary

(C) Electromagnets are used in motors, but bar magnets are used in generators
(D) Electromagnets need electricity but bar magnets do not need electricity

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A train goes past a railway station at a high speed. A young boy standing on the edge of the platform is likely to __________...?

(A) Remain unaffected
(B) Fall away from the train

(C) Fall towards the train
(D) Fall away from or towards the train depending upon the speed

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A thick layer of air that surrounds the earth is known as...?

(A) Ozone
(B) Atmosphere

(C) Stratosphere
(D) Hydrosphere

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