What is the lateral magnification

Question

Assignment:

1. Please find the magnetic force (magnitude and direction) on the wire shown. The curtent in the Wire is I = 17 A in the direction of the arrow. The magnetic field is uniform and points into the page with magnitude B =0.25 T. The X and Y coordinates of the endpoints of the wire are as indicated.

2. A circular coil of radius r = 7 cm , turns N = 33, and resistance R = 3.05 Ω , is in a region of space where there is a uniform magnetic field perpendicular to the plane of the coil and directed into the page. The magnetic field is changing at the rate ΔB/Δt = -12 T/s. Please find:

A) The magnitude of the induced emf, £.

B) The magnitude of the induced current I .

C) The direction of the induced current.

3. A convex, spherical mirror has focal length ƒ = -4 m. An object of height h_o = 0.75 m is placed at a distance d_o = 6 m from the reflecting surface of the mirror. Please answer the following:

a. What is the image distance d₁?
b. What is the lateral magnification m ?
c. the image height h₁ ?
d. Is the image real or virtual?
e Is the image upright or inverted?

4. Light of Wavelength λ = 525 mm is incident on the left surface in the drawing. What thickness t, must the coating have in order to prevent reflection of that light.

Coating       Glass

←t→

n = 1.55      n' = 1.40

5. Please calculate the speed of an electron (m_o = 9.11 x10^-31 kg) whose kinetic energy is exactly One half of its

A) Total energy.
B) Rest energy.