Which phenomena shows the particle nature of light?

• Diffraction

• Interference

• Photoelectric effect

• Polarisation

152.

What is the SI unit of intensity of sound?

• Decible

• Newton

• Heartz

• Tesla

When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion?

• Energy

• Displacement

• Velocity

• Acceleration

What is the S.I. unit of heat energy?

• Joule

• Newton

• Calorie

• Kelvin

For which of the following game, players must have the knowledge of Pascal's Law?

• Climbing

• Paragliding

• Rafting

• Scuba diving

What is the value of the Least Distance of Distinct vision (in cm) for a normal human being?

• 2.5 cm

• 25 cm

• 58 cm

• 60 cm

On which principle does the hydraulic lift works?

• Netwon's law

• Pascal's law

• Archimede's law

• Joule's law

At what temperature (in degree celsius), the numerical values on Celsius and Fahrenheit scales become equal?

• -40

• 40

• 273

• -273

Which of the following causes fly ash?

• Hydroelectric Power Station

• Coal Combustion Power Plant

• Nuclear Power Plant

• Tidal Power Plant

Who developed the theory of relativity?

• Issac Newton

• Charles Darwin

• Marie Curie

• Albert Einstein