Light Refraction and Photon Energy

The video tutorial covers questions from a physics exam, focusing on light refraction and photon energy. It explains how to calculate the angle of refraction using Snell's Law, draw refracted rays, identify the color of light based on photon frequency, and calculate photon energy in joules and electron volts.

What is the index of refraction for air as mentioned in the video?

• 1.00

• 1.33

• 2.00

• 1.50

Which formula is used to calculate the angle of refraction?

• F=ma

• E=mc^2

• V=IR

• n1 sin θ1 = n2 sin θ2

What is the calculated angle of refraction when light enters leucite at 30 degrees?

• 30.00 degrees

• 25.00 degrees

• 19.47 degrees

• 15.00 degrees

What tool is suggested for drawing the refracted ray?

• Calculator

• Ruler

• Protractor

• Compass

What happens to light when it hits a boundary?

• It disappears

• It refracts only

• It refracts and reflects

• It reflects only

What is the frequency of the photon emitted by the mercury atom?

• 6.00 x 10^14 Hz

• 5.00 x 10^14 Hz

• 4.00 x 10^14 Hz

• 5.48 x 10^14 Hz

Which color of light is associated with a frequency of 5.48 x 10^14 Hz?

• Yellow

• Green

• Blue

• Red

What is Planck's constant as used in the video?

• 3.00 x 10^8 m/s

• 9.81 m/s^2

• 6.63 x 10^-34 J·s

• 1.60 x 10^-19 C

How is the energy of a photon calculated?

• E=1/2mv^2

• E=mv^2

• E=hf

• E=mc^2

What is the energy of the photon in electron volts?

• 1.60 eV

• 4.00 eV

• 2.26 eV

• 3.63 eV