CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
Optics practice 60: focal length magnitude is 0.10 m. Optical power magnitude is:
A. 12.00 D
B. 11.00 D
C. 10.00 D
D. 9.00 D
Correct Answer: C
|P|=1/|f|.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
Optics practice 59: focal length magnitude is 0.55 m. Optical power magnitude is:
A. 1.64 D
B. 1.82 D
C. 2.82 D
D. 2.00 D
Correct Answer: B
|P|=1/|f|.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
Optics practice 58: focal length magnitude is 0.50 m. Optical power magnitude is:
A. 3.00 D
B. 2.00 D
C. 4.00 D
D. 1.00 D
Correct Answer: B
|P|=1/|f|.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A ray strikes a plane mirror at 80° incidence. Reflection angle is:
A. 81°
B. 80°
C. 79°
D. 82°
Correct Answer: B
Angle of reflection equals angle of incidence.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A ray strikes a plane mirror at 70° incidence. Reflection angle is:
A. 69°
B. 71°
C. 70°
D. 72°
Correct Answer: C
Angle of reflection equals angle of incidence.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A ray strikes a plane mirror at 60° incidence. Reflection angle is:
A. 61°
B. 60°
C. 62°
D. 59°
Correct Answer: B
Angle of reflection equals angle of incidence.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A ray strikes a plane mirror at 50° incidence. Reflection angle is:
A. 52°
B. 50°
C. 51°
D. 49°
Correct Answer: B
Angle of reflection equals angle of incidence.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A ray strikes a plane mirror at 40° incidence. Reflection angle is:
A. 41°
B. 39°
C. 42°
D. 40°
Correct Answer: D
Angle of reflection equals angle of incidence.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A ray strikes a plane mirror at 30° incidence. Reflection angle is:
A. 32°
B. 31°
C. 29°
D. 30°
Correct Answer: D
Angle of reflection equals angle of incidence.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A ray strikes a plane mirror at 20° incidence. Reflection angle is:
A. 19°
B. 20°
C. 21°
D. 22°
Correct Answer: B
Angle of reflection equals angle of incidence.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A ray strikes a plane mirror at 10° incidence. Reflection angle is:
A. 12°
B. 10°
C. 9°
D. 11°
Correct Answer: B
Angle of reflection equals angle of incidence.
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A converging lens has f=30 cm and object distance 80 cm. Using magnitude form, image distance is:
A. 48 cm
B. 49 cm
C. 50 cm
D. 47 cm
Correct Answer: A
v = fu/(u−f).
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A converging lens has f=30 cm and object distance 60 cm. Using magnitude form, image distance is:
A. 59 cm
B. 61 cm
C. 62 cm
D. 60 cm
Correct Answer: D
v = fu/(u−f).
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A converging lens has f=30 cm and object distance 50 cm. Using magnitude form, image distance is:
A. 75 cm
B. 76 cm
C. 74 cm
D. 77 cm
Correct Answer: A
v = fu/(u−f).
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A converging lens has f=30 cm and object distance 40 cm. Using magnitude form, image distance is:
A. 121 cm
B. 119 cm
C. 120 cm
D. 122 cm
Correct Answer: C
v = fu/(u−f).
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A converging lens has f=25 cm and object distance 80 cm. Using magnitude form, image distance is:
A. 37.36 cm
B. 40 cm
C. 36.3636 cm
D. 32.72 cm
Correct Answer: C
v = fu/(u−f).
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A converging lens has f=25 cm and object distance 60 cm. Using magnitude form, image distance is:
A. 47.15 cm
B. 43.86 cm
C. 42.8571 cm
D. 38.57 cm
Correct Answer: C
v = fu/(u−f).
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A converging lens has f=25 cm and object distance 50 cm. Using magnitude form, image distance is:
A. 52 cm
B. 49 cm
C. 51 cm
D. 50 cm
Correct Answer: D
v = fu/(u−f).
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A converging lens has f=25 cm and object distance 40 cm. Using magnitude form, image distance is:
A. 60 cm
B. 66.6667 cm
C. 67.67 cm
D. 73.34 cm
Correct Answer: B
v = fu/(u−f).
CSS - PMS - CCE - PCS - Everyday Science
Light and Optics
A converging lens has f=25 cm and object distance 30 cm. Using magnitude form, image distance is:
A. 150 cm
B. 151 cm
C. 149 cm
D. 152 cm
Correct Answer: A
v = fu/(u−f).