GATE Questions

Q:

The wavelike properties of electrons are useful in

A) Magnifying objects B) Lasers
C) Weather reports D) All of the above
 
Answer & Explanation Answer: A) Magnifying objects

Explanation:

The photoelectric effect pointed to the particle properties of light, which had been considered to be a wave phenomenon. Particles like electron and protons have both particle like and wave like behavior. Thus, according to de Broglie, all the material particles in motion possess wave characteristics. Although the dual nature of matter is applicable to all material objects but it is significant for microscopic bodies only.

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Filed Under: Physics
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6 1802
Q:

Which of the following statements about DNA replication is false?

A) The enzyme that catalyzes DNA replication is DNA polymerase. B) Unwinding of the DNA molecule occurs as hydrogen bonds break.
C) The process is known as semiconservative replication because one old strand is conserved in the new molecule. D) Replication occurs as each base is paired with another exactly like it.
 
Answer & Explanation Answer: D) Replication occurs as each base is paired with another exactly like it.

Explanation:
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Filed Under: Biology
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2 1800
Q:

Japanese Ukiyo e prints depicted

A) Lord shiva B) The everyday world
C) Flung ink D) Shinto
 
Answer & Explanation Answer: B) The everyday world

Explanation:

Japanese Ukiyo-e prints depicted the everyday world or the transitory world we live.

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Filed Under: General Awareness
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1 1796
Q:

Kyoto Protocol is related to

A) Wetland conservation B) Ozone depletion
C) Air pollution D) Climate change
 
Answer & Explanation Answer: D) Climate change

Explanation:
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Filed Under: General Science
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5 1794
Q:

Which of the following is a property of water?

A) High polarity B) Universal solvent
C) High specific heat D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Yes, we know that water is a universal solvent.

 

Water can moderate temperature because of the two properties: high-specific heat and the high heat of vaporization.

 

Water is a polar molecule that has a high level of polarity and attraction to ions and other polar molecules.

 

Hence, all the above given options are the properties of water.

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Filed Under: General Science
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2 1794
Q:

Groundwater is found underground in the zone of

A) Penetration B) Aeration
C) Saturation D) Both B & C
 
Answer & Explanation Answer: D) Both B & C

Explanation:

Groundwater is all the water that has penetrated the earth's surface and is found in one of two soil layers. The one nearest the surface is the "zone of aeration", where gaps between soil are filled with both air and water. Below this layer is the "zone of saturation", where the gaps are filled with water.

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Filed Under: World Geography
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2 1793
Q:

PR is a tangent to a circle with centre O and radius 4 cm at point Q. If ∠POR = 90°, OR = 5 cm and OP = 20/3 cm, then the length of PR is:

A) 16/3 cm B) 23/3 cm
C) 25/3 cm D) 3 cm
 
Answer & Explanation Answer: C) 25/3 cm

Explanation:
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4 1792
Q:

The expansion of the rail networks led to

A) Growth in trading between parts of the country B) Growth in Steel industry
C) Both A & B D) Decline in textile industry
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The expansion of the rail networks led to better transport system for trading between many parts of the nation and the steel is the main component in making the rails and the locomotive itself resulting in the growth of the steel industry.

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Filed Under: Indian History
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1 1792