Related Questions

A man standing at the top of a tower has two spheres A and B. He drops sphere A downwards and throws sphere B horizontally at the same time. Which of the following is correct ?
A Both the spheres will reach the ground simultaneously.
B A will reach the ground first.
C B will reach the ground first.
D The question is incomplete because the masses of the spheres are not given.
Rain drops falling through atmospheric air attain limited terminal velocity, because of
A Upward thrust due to air
B Viscous force exerted by air
C Surface tension effects of water
D Force of gravity
Go and catch the falling star. Here the ‘‘falling’’ is
A an adverb
B a preposition
C an adjective
D a verb
The lower edge of the pitched roof, from where the rain water of the roof surface drops down, is known as
A Hip
B Gable
C Ridge
D Eaves
The dense mass of small water drops on smoke particles in the lower layers of the atmosphere is ________
A Smog
B Frost
C Fog
D Dew
Bleeding of gums, falling of teeth, fragile bones and delayed wound healing occur due to the deficiency of which one of the following vitamins?
A Vitamin C
B Vitamin K
C Vitamin D
D Vitamin B
For spheres, volume shape factor is given by
A π(=A/D²)
B 2π(=2A/D²)
C π/6(=V/D³)
D AD/V
For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter)
A π(=A/D²)
B π/6(=V/D³)
C AD/V
D None of these
The impact between two lead spheres is approximately equal to an __________ impact.
A Elastic
B Inelastic
C Solid
D None of these
For spheres, the specific surface shape factor is given by
A $$\frac{{{\text{AD}}}}{{\text{V}}}$$
B $$\frac{{\text{D}}}{{\text{V}}}$$
C $$\frac{{\text{A}}}{{\text{V}}}$$
D $$\sqrt {\frac{{{\text{AD}}}}{{\text{V}}}} $$

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