Physics Mcqs

A wire of length L is stretched by a length E when a force F is applied at one end. If the elastic limit is not exceeded the amount of energy stored in the wire is_________________?

• (A)  FE
• (B)  (FE)
• (C)  FE2/L
• (D)  FE2

Answer

Submitted By :Ali Uppal

Which one of the following physical quantities does not have the dimensions of force per unit area ?

• (A)  Stress
• (B)  Strain
• (C)  Youngs modulus
• (D)  Pressure

Answer

Submitted By :Ali Uppal

What are the dimensions of stress ?

• (A)  MLT-2
• (B)  ML-2T-1
• (C)  ML-1T-2
• (D)  ML-T-1

Answer

Submitted By :Ali Uppal

Which of the following substances posses the highest elasticity ?

• (A)  Rubber
• (B)  Steel
• (C)  Glass
• (D)  Copper

Answer

Submitted By :Ali Uppal

Biomass can be converted into fuels by____________________?

• (A)  direct combustion
• (B)  fermentation
• (C)  both A and B
• (D)  none of these

Answer

Submitted By :Ali Uppal

________________ cells converts solar energy into electrical energy?

• (A)  rotory
• (B)  photovoltaic
• (C)  galvanic
• (D)  non of these

Answer

Submitted By :Ali Uppal

Geothermal energy is a _______________________ source of energy?

• (A)  non-renewable
• (B)  stable
• (C)  renewable
• (D)  none of the above

Answer

Submitted By :Ali Uppal

Propulsion force of a rocket is____________________?

• (A)  non-conservative force
• (B)  conservative force
• (C)  both A and B
• (D)  none of these

Answer

Submitted By :Ali Uppal

The area under the force displacement graph represents__________________?

• (A)  area
• (B)  work done
• (C)  power
• (D)  none of these

Answer

Submitted By :Ali Uppal

If the density of atoms remain same along any direction in a crystal is called__________________?

• (A)  Symmetry
• (B)  Homogeneity
• (C)  Isotropy
• (D)  Cleavage

Answer

Submitted By :Ali Uppal