RRB NTPC General Science 2

Question 1

Newton's First Law of Motion is also known as the Law of:

Accepted Answer

Inertia

Answer

Newton's First Law states that a body remains at rest or in motion unless acted upon by a force, which is the Law of Inertia.

Question 2

Which element has the atomic number 1?

Accepted Answer

Hydrogen

Answer

Hydrogen has atomic number 1, as it has one proton in its nucleus.

Question 3

Photosynthesis in plants takes place in the:

Accepted Answer

Chloroplast

Answer

Photosynthesis occurs in chloroplasts, which contain the green pigment chlorophyll.

Question 4

The boiling point of water at standard atmospheric pressure is:

Accepted Answer

100°C

Answer

Water boils at 100°C (212°F) at standard atmospheric pressure of 1 atm.

Question 5

Sound travels fastest through which medium?

Accepted Answer

Steel

Answer

Sound travels fastest through solids like steel because the molecules are closely packed, enabling faster vibration transfer.

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