Physics Quiz

What is the speed of light in vacuum?

• 200000kms/sec

• 300000kms/sec

• 250000kms/sec

• 100000kms/sec

What is the unit of refractive index?

• m/s

• m/cm

• volt/cm

• unitless

What is audible range of human?

• 400-700nm

• 20-200KHz

• 20Hz-20KHz

• 10-100KHz

He-Ne Laser is...............................energy level system.

• two level

• three level

• four level

• single level

if there is free fall, at what rate object falls?

• 9.8m/sec square

• 980m/sec square

• 9.8cm/sec

• 9.8 cm.sec

If electrical conductivity increases with the increase of temperature of a substance, then it is a

• Conductor

• Semiconductor

• Insulator

• All of the above

Which of the following is unit of force ?

• Newton

• Dyne

• Joule

• erg

Which actor is saying this dialogue ?

• Salman Khan

• Sushant Singh Rajput

• Hritik Roshan

• Aamir Khan