Question
A certain sum of money invested at R% p.a. fetches a
compound interest (compounded annually) of 1400 and simple interest of Rs.1250 at the end of 2 years. Find the value of ‘R’.Solution
Difference between compound interest and simple interest for 2 years = 1400 – 1250 = Rs.150 Simple interest for 1 year = 1250/2 = Rs.625 So, R = (150/625) × 100 = 24%
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?
