Question
Compound interest on a certain sum of money for 2 years
is Rs.2860 while the simple interest on the same sum for the same time period is Rs.2600. Find the rate of interest.Solution
SI for 1 year = 2600/2 = Rs.1300 Difference between CI and SI for 2 years = Rs.(2860 – 2600) = Rs.260 Required rate = (260/1300) x 100 = 20%
Which of the following materials is used for the generation of ultrasonic waves by using magnetostriction effect?
A spherical black body with a radius of 8 cm radiates 450-watt power at 500 K. If the radius were halved and the temperature doubled, the power radiated...
Which of the following vitamins are called fat-soluble vitamins?
Which one of the following determines the sharpness of image in a camera?
Which graph represents uniform motion?
What is the SI unit of power?
A body is projected upwards with an initial velocity u . At the highest point, what is its acceleration? Â
Cryogenics is a branch of Physics that deals with what?
A boy is standing in front of a plane mirror at a distance of 3 m from it. What is the distance between the boy and his image?
In which medium can sound not travel?