CDS Physics and Science 2

Question 1

What is the chemical symbol for gold?

Accepted Answer

Au

Answer

The chemical symbol for gold is Au, derived from the Latin word 'Aurum'.

Question 2

Which type of electromagnetic radiation has the highest frequency?

Accepted Answer

Gamma rays

Answer

Gamma rays have the highest frequency (and shortest wavelength) in the electromagnetic spectrum.

Question 3

Archimedes' Principle states that a body immersed in a fluid experiences an upward force equal to what?

Accepted Answer

Weight of fluid displaced

Answer

Archimedes' Principle states buoyant force equals the weight of the fluid displaced by the object.

Question 4

What is the chemical formula of common salt?

Accepted Answer

NaCl

Answer

Common salt (sodium chloride) has the chemical formula NaCl, made of sodium and chlorine ions.

Question 5

Which organ in the human body produces insulin?

Accepted Answer

Pancreas

Answer

The pancreas produces insulin in its beta cells (islets of Langerhans) to regulate blood sugar levels.

CDS - Combined Defence Services