2nd MONTHLY TEST IN SCIENCE 10

He is an English scientist, developed a scientific theory that explains electromagnetic waves.

• Heinrich Hertz

• James Clerk Maxwell

• Gregor Mendel

• Robert Hooke

_____________ are transverse waves that consist of rapidly alternating electric and magnetic fields that move at the speed of light.

• Magnetic waves

• Electromagnetic waves

• Light waves

• Velocity of light

Which of the following is not a property of an electromagnetic (EM) wave?

• Momentum

• Energy

• Pressure

• Heat energy

A soap bubble 250 nm thick is illuminated by white light, and the index of refraction of the soap film is 1.36. Which colors appear strong in the reflected light?

• Red (620-750 nm)

• Blue (450-495 nm)

• Yellow (570-590 nm)

• Orange (590-620 nm)

________ are images formed by diverging light rays that cannot be projected on a screen. Its orientation is erect, and laterally inverted.

• Virtual images

• Real image

Bouncing back of light ray from a surface.

• Reflection

• Refraction

• Magnification

• Zoom in

What type of electromagnetic waves is generally harmless?

• Ultraviolet rays

• Visible light

• Cosmic rays

• X-rays

What type of electromagnetic waves is used for detecting counterfeit money?

• Ultraviolet rays

• Visible light

• Cosmic rays

• X-rays

What type of electromagnetic waves has the longest wavelength?

• Infrared rays

• Radio waves

• Visible light

• X-rays

What type of electromagnetic waves is detected by our sense of sight?

• Infrared rays

• Radio waves

• Visible light

• X-rays