Question
A big joint family has 4 grandparents, 4 parents and 8
cousins. The average age of the grandparents is 74 years, that of the parents is 58 years and that of the cousins is 22 years. What is the average age of the members of the family?Solution
The correct answer is C
A pond of water appears less deep due to –
Which law states that the ratio of the potential difference across a conductor to the current through it is constant, provided the temperature remains c...
When white light passes through a glass prism, which color deviates the least?
The weight (W) of a body is derived from which formula?
What is the momentum of a 2 kg object moving at 3 m/s?
In an experimental arrangement of a Fresnel's biprism, monochromatic light of wavelength 2. is used to produce interference fringe pattern. On introduc...
Parsec is the unit of
Match the following machines with their working principles:
(i) Electric motor - (a) Heat energy into mechanical energy
(ii) Steam engin...
What happens to the electrostatic force between two charges when the distance between them decreases?
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