APP2 Diffraction and Double Slits

A slit of width a is used to observe a diffraction pattern on a screen at a distance L from the slit.If the width of the slit were doubled, the width of the central bright band would

• decrease by a factor of 4

• decrease by a factor of 2

• increase by a factor of 2

• increase by a factor of 4

Light of wave length 3.5x10² nm is incident on a slit of width 0.5mm . Which of the following expressions corresponds to the angle at which the second order minimum is formed

• sinθ= 2.2 x 10 ^-4

• sinθ= 3.5 x 10 ^-4

• sinθ= 1.1 x 10 ^-3

• sinθ= 1.4 x 10 ^-3

Light of wavelength 2. 5 x 10 ²nm is incident on a slit of width 0.3 mm. What order of dark band corresponds to

sinθ = 2. 5 x 10 ^-3

• 4

• 3

• 2

• 1

The bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not penetrate

• A. refraction
• B. reflection
• C. resonance
• D. standing wave

Tags

NGSS.MS-PS4-2

When two waves combine to form a new wave with a smaller amplitude, it is called 

• Refraction
• Constructive Interference
• Resonance
• Destructive Interference

Tags

NGSS.MS-PS4-1

This wave has the second highest frequency on the spectrum. 

• microwaves
• visible light
• x-rays
• gamma ray

Tags

NGSS.HS-PS4-1

When the crest of one wave passes through the trough of another wave, ______ takes place.

• resonance
• diffraction
• destructive interference
• constructive interference

In ________ interference, the energy of the combined wave is greater than the energy of each of the two waves.

• destructive
• rarefaction
• resonance
• constructive

Tags

NGSS.MS-PS4-1

This image is representing what wave interaction?

• Refraction
• Diffraction
• Reflection
• Interference

Tags

NGSS.MS-PS4-2

An interaction that occurs when 2 waves meet is known as what?

• Diffraction
• Standing wave
• Interference
• Resonance