spectra : electromagnetic spectrum

electromagnetic spectrum

by Syat and Norya

waves

faham?

Multiple Choice

which one is the 7 colours of spectrum huh?

• maroon, red, orange, light yellow, dark green, cyan, indigo.

• red, orange, yellow, green, blue, indigo, violet.

• red, orange, yellow, green, cyan, lime, indigo

• blue, green, pink, brown, orange.

Multiple Choice

which one is the sections of electromagnetic spectrum huh?

• ganma rays, ex-rays, ultrapurple, infra, microscope, radio

• grandma rays, ex-girlfriend, ultraman, infra, micro-organism, radio fm

• gamma rays, x-rays, ultraviolet, infrared, microwaves, radio waves.

• entahla lupa la, sorry

Multiple Choice

which one have the highest frequency huh?

• gamma rays

• radio waves

Multiple Choice

which one have the longest wavelength huh?

• radio waves

• gamma rays

Multiple Choice

at what speed do electromagnetic waves travel through a vacuum huh?

• 3 x 10^18 m/s

• 3 x 10^7 m/s

• 3 x 10^8 m/s

Multiple Choice

ultraviolet radiation can lead to...

• skin cancer

• blind

• heart attack

Multiple Select

medical stuff must...

• minimise their exposure

• find another job

• standing well away when a patient being examined

• none of above

Multiple Choice

put the following regions of the electromagnetic spectrum in order, starting with the greatest wavelength

• radio-waves, gamma rays, ultraviolet, infrared, micro waves

• gamma rays, x-rays, ultraviolet, infrared, microwaves, radiowaves

• radio waves, microwaves, infrared, ultraviolet, x-rays, gamma rays

Multiple Select

pick the TRUE answer

• infrared waves have longer wavelengths than red

• visible light lies between infrared and microwaves in the electromagnetic spectrum

• all electromagnetic waves travel at the same same speed in vacuum

• all electromagnetic waves travel at the same time in air

Multiple Choice

shortest wavelength?

• microwaves

• infrared

• gamma rays

oke thanks

bye