O Work function of the Aluminum is 4.08 eV. What is the threshold frequency required to produce photoelectrons from aluminum? Classify electromagnetic radiations that can produce photoelectrons. If light of frequency 4 x 1015 Hz is used to illuminate a piece of aluminum, then what is the maximum energy and speed of emitted photoelectrons? If the light described in part (ii) is increased by a factor of 2 in intensity, what would happen to the maximum kinetic energy of photoelectrons?

Q: Using Ray Tracing Method and Mathematical Method, locate the image of a 2-cm object if placed on the…

A: Size of object, h=2 cmFocal length of converging lens, f=3 cmObject distance from optical center, u=…

Q: Christmas tree ball. If your face is 23.0 cm away from the ball's front surface, where is your…

A:

Q: Using Ray Tracing Method and Mathematical Method, locate the image of a 2-cm object if placed on the…

A: Object height h=2 cm placed on the following distances from a diverging lens.Focal length f=3 cm…

Q: A student with normal sight is surprised to see a possum scampering up the rear wall in the Lyle…

A:

Q: SPHERICAL MIRRORS Concave Mirror Object Height: 3 cm Focal Length: 21 cm Object Image Distance (cm)…

A: Solution:Here we are given that the mirror is concave.Thus, the focal length will be:f = -21 cmho =…

Q: The person cannot see the objects beyond 15.0 cm distance from the eye. This means, the far point of…

A: It is given that a person cannot see the objects beyond 15 cm distance from the eye.

Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.