Pradhan Mantri Swasthya Suraksha Yojana (PMSSY) was

Which device uses ultrasonic waves for getting images of internal organs of human body?

Temperature of the Sun is measured by

Who defined the law of gravitation? 

Why does a solid chunk of iron float in mercury but sink in water?

Which of the following determines the loudness or softness of the sound?

Which type of mirror is utilized in solar furnaces to focus sunlight and generate heat?

One Astronomical Unit (AU) is the average distance between-

The time period of a second’s pendulum is –

Which among the following is a vector quantity? 

One Kilowatt hour is equal to—