Spectrum Physics 10th

Total Angle of Deviation does not depend on ______

• Angle of Incidence

• Angle of Prism

• Refractive Index

• frequency

Which colour of Light travel fastest?

• Green

• Red

• Yellow

• Violet

In the spectrum of white light by a prism, the color at the extreme end opposite to the base of prism is:

• Violet

• Yellow

• Blue

• Red

Calculate the frequency of Indigo color if wavelenth is 450 nm.

Which colour of light scatter most from the following ?

( Blue, Indigo, Green, Yellow)

• Indigo

• Blue

• Yellow

• Green

An electromagnetic wave has a frequency of 500 MHz and wavelength of 60 cm. Calculate the speed of wave.

What would be the size of smallest particle that scatter the light ?

• 900 nm

• 800 nm

• 600 nm

• 400 nm

Why the danger signal is in red colour ?

• Because Red Deviate Most

• Because Red Scatter Least

• Because Red has least wavelenght

• Because Red scatter Most

Which one of the light is used in remote control devices at home ?

• Radio Waves

• Ulta Violet

• Infrared

• Microwave