Which three statements about electromagnetic radiation are true? Light is a kind of electromagnetic radiation. Electromagnetic radiation can travel only short distances. Electromagnetic radiation has no mass. Electromagnetic radiation can travel through a vacuum. All kinds of electromagnetic radiation are invisible.

Which of the following statements about electromagnetic radiation is true?It consists of perpendicularly oscillating electric and magnetic fields, and the direction of propagation is perpendicular to both.The oscillating electric and magnetic fields are completely out of phase with one another.It consists of oscillating electric and magnetic fields that are parallel to one another and perpendicular to the direction of propagation.It always travels at 3 ×× 10 88 m/sm/s .

Which statement about electromagnetic waves is correct?A A wave of wavelength 5.0  10 –6 m is invisible to the human eye.B They can all travel at different speeds in free space.C They cannot be polarised.D They consist of vibrating atoms.

True or false? Electromagnetic waves can travel through a vacuum.

Which of the following statements about electromagnetic waves is incorrect?They can all travel in a vacuum and travel at the same speed in vacuumThey all transfer energy from one place to anotherThey can all be reflected, but only some electromagnetic waves can be refractedThey are all transverse waves2On the electromagnetic spectrum, what lies between infrared and radio waves?MicrowavesUltravioletGamma raysVisible light3A ray of visible light is incident onto a plane mirror.  The angle between the incident ray and the surface of the mirror is 40°.  What is the angle of reflection of this ray from the mirror?50°90°140°40°4Why does a green plant appear green when illuminated with white light?Because it reflects the green light that is incident onto itBecause it absorbs the green light that is incident onto itBecause it transmits the other colours in the visible spectrum that are incident onto itBecause it reflects the other colours in the visible spectrum that are incident onto it5A ray of light is travelling from a glass block into the surrounding air.  Its angle of incidence onto the boundary between the glass and the air is equal to 30°.  What can be said about its angle of refraction as it travels from the glass into the surrounding air?It is impossible to sayIt will be less than 30°It will be equal to 30°It will be greater than 30°

Which of the following is true about visible light? Group of answer choicesVisible light is radioactive and causes skin cancer.Visible light is not real.Visible light can never harm you.Visible light can’t be seen.