Question
Select the most appropriate 'one word' for the expression
given below. A person who studies and writes about the pastSolution
A historian is a person who studies and writes about the past, especially regarding human affairs.
Geologist studies Earth and rocks.
Biologist studies living organisms.
Astronomer studies celestial objects like stars and planets.
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?
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