Mechanical Physics MCQ question and answer with solution | Physics Gk MCQs

A. maximum at 0°C

B. minimum at 0°C

C. maximum at 4°C

D. minimum at -4°C

A. if the body completely gain its original shape after removal of deforming force

B. if the body remains in deformed shape even after removal of the deforming force

C. if weight of the body is equal to force of buoyancy

D. None of the above

A. it is the ratio of force to area and both force and area are vectors

B. it is the ratio of magnitude of force to area

C. it is the ratio of component of force (normal to area) to area

D. None of the above

A. Due to gravity

B. Due to atmospheric pressure

C. Due to the presence of Eddy current in the air

D. Due to exertion of surface tension by the molecules

A. Solid

B. Fluid

C. The Gas

D. Steam

A. The direction

B. Volume

C. Power

D. Energy

A. In steady flow of a liquid, the velocity of liquid particles reaching at a particular point is the same at all points

B. Steady flow is also called streamlined flow

C. In steady flow, each particle may not follow the same path as taken by a previous particle passing through that point

D. Two streamlines cannot intersect with each other

A. $$\frac{{{\rho _1} + {\rho _2}}}{2}$$

B. $$\frac{{2{\rho _1}{\rho _2}}}{{{\rho _1} + {\rho _2}}}$$

C. $$\frac{{2{\rho _1}{\rho _2}}}{{{\rho _1} - {\rho _2}}}$$

D. $$\frac{{{\rho _1}{\rho _2}}}{{{\rho _1} + {\rho _2}}}$$

A. Both (A) and (R) are true and (R) is the correct explanation of (A)

B. Both (A) and (R) are true, but (R) is not the correct explanation of (A)

C. (A) is true, but (R) is false

D. (A) is false, but (R) is true

A. same in both tubes

B. greater in the tube of smaller diameter

C. greater in the tube of larger diameter

D. None of the above