Related Questions

The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)
A $$\frac{{{\text{P}}l{\text{A}}}}{{\text{E}}}$$
B $$\frac{{{\text{P}}l}}{{{\text{AE}}}}$$
C $$\frac{{\text{E}}}{{{\text{P}}l{\text{A}}}}$$
D $$\frac{{{\text{AE}}}}{{{\text{P}}l}}$$
Chronic deficiency deficiency of vitamin 'C' may causes - 
A Scurvy
B Beriberi
C Xeropthalmia
D Night blindness
E Delay wound healing
Excess of Total Expenditure over total Receipts is :
A Deficit Budget
B Surplus Budget
C Balanced Budget
D None of the above
The ratio of the total solar radiant energy returned by a planetary body to the total radiant energy incident on the body, the called:
A Reflectance
B Reflectance factor
C Albedo
D None of these
As per a recent discovery, Earth's High-Energy Electrons may contribute to water formation in which body?
A Moon
B Mars
C Murcury
D Sun
E None
Excess of fat in the body is stored in
A Adipose tissue
B Acrosome
C Erythrocytes
D Bone marrow
Which Vitamins are those, if taken in excess can be dangerous as they are stored in the body?
A B Complex
B E and C
C B and C
D A and D
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body and $$\delta $$ = Static deflection of the body)
A $$\frac{1}{{2\pi }} \times \sqrt {\frac{{\text{s}}}{{\text{m}}}} $$
B $$\frac{1}{{2\pi }} \times \sqrt {\frac{{\text{g}}}{\delta }} $$
C $$\frac{{0.4985}}{{\sqrt \delta }}$$
D Any one of these
If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.
A Change
B Does not change
C Changes periodically
D None of these
If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion,
A P + ma = 0
B P - ma = 0
C P × ma = 0
D $$\frac{{\text{P}}}{{{\text{ma}}}} = 0$$

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