Physics MCQ's

Which of the following equation represents the Torricelli’s law?

[A] (2gh)^1/2
[B] √3 gh
[C] √2 gh
[D] 2gh

Which of the following condition will be true for a planet to have atmosphere?

[A] velocity of molecules in its atmosphere is lesser than escape velocity [B] velocity of molecules in its atmosphere is greater than escape velocity [C] velocity of molecules in its atmosphere is twice the escape velocity [D] velocity of molecules in its atmosphere is equal to the escape velocity

What is the value of escape velocity for earth?

[A] 9.8 km s^-2
[B] 1.6 km s^-2
[C] 11.2 km s^-2
[D] 7.92 km s^-2

The work done by a variable force is given by:

What is the dot product of two perpendicular vectors?

[A] 1
[B] 0
[C] -1
[D] 1/2

What is the dot product of two perpendicular vectors?

[A] 1
[B] 0
[C] -1
[D] 1/2

What is the dot product of two perpendicular vectors?

[A] 1
[B] 0
[C] -1
[D] 1/2

Which country has invited India to join in developing next-generation nuclear reactor and to participate in its multipurpose fast research reactor (MBIR) project?

[A] Japan
[B] France
[C] Russia
[D] Kazakhstan

The frequency range of Ultra High Frequency (UHF) is __?

[A] 3 to 10 Megahertz
[B] 3 to 30 Megahertz
[C] 300 to 3000 Megahertz
[D] 300 to 30000 Megahertz

A pressure cooker on a stove with its lid tightly closed and the whistle in position is an example of:

[A] open system
[B] closed system
[C] isolated system
[D] adiabatic system