Question 4651:

X- rays cannot be used ____________

A. To take photographs of bone structure in the body
B. To detect finger prints
C. To detect flaws in metal castings
D. To detect alterations to works of art

Question 4652:

Professor Peters walks directly toward a plane mirror at a speed of \(0.25 \mathrm{~m} / \mathrm{s}\). Determine the speed of the image relative to him.

A. \(0.13 \mathrm{~m} / \mathrm{s}\)
B. \(\quad 0.50 \mathrm{~m} / \mathrm{s}\)
C. \(\quad 0.25 \mathrm{~m} / \mathrm{s}\)
D. \(\quad 0.75 \mathrm{~m} / \mathrm{s}\)

Question 4653:

The angle of incidence in a denser medium when the angle of refraction in the less dense medium is \(90^{\circ}\) is called a ____________

A. Critical angle
B. Reflected angle
C. Incident angle
D. Emergent angle

Question 4654:

The driving mirror is a ____________

A. Plane mirror
B. Convex mirror
C. Concave mirror
D. Thick plane mirror

Question 4655:

The following are types of a converging lens except ____________

A. Biconvex
B. Plano-convex
C. Mini-convex
D. Converging meniscus