Question Library — KalmiPrep by Kalmitech

Physics UTME / JAMB 1983 Waves and Optics

Which of the following conditions are necessary and sufficient for total internal reflection to take place at the boundary between two optical media? i. light is passing from optically denser medium to optically less dense medium. ii. light is passing from optically less dense medium to optically denser medium. iii. angle of incidence is greater. iv. angle of incidence is lesser

A

i and ii only

B

ii and iii only

C

ii and iv only

D

i and iii only

E

ii and iv only

medium Difficulty

Physics UTME / JAMB 1983 Waves and Optics

Which of the following arrangements in the sequence shown can be used to obtain a pure spectrum of white light?

A

source, slit, converging lens, prism, converging lens, screen.

B

source, slit, diverging lens, prism, diverging lens, screen.

C

source, converging lens, prism, diverging lens, screen.

D

source, slit, prism, diverging lens, converging lens, screen.

E

source, slit, prism, diverging lens, sreen.

medium Difficulty

Physics UTME / JAMB 1983 Waves and Optics

Ripples on water are similar to light waves in that they both

A

have the same wavelength

B

are longitudinal

C

cannot be reflected

D

travel at the same speed

E

can be refracted and diffracted

medium Difficulty

Physics UTME / JAMB 1983 Waves and Optics

the speed of light in vacuum is 3.0 x 108ms-1. If the refractive index of a transparent liquid is \(\frac{4}{3}\), then the speed of light in the liquid is

A

0.44 x 10 8ms-1

B

2.25 x 10 8ms-1

C

3.0 x 10 8ms-1

D

4.0 x 10 8ms-1

E

4.33 x 10 8ms-1

medium Difficulty

Physics UTME / JAMB 1983 Waves and Optics

Longitudinal waves do not exhibit

A

Refraction

B

Reflection

C

Diffraction

D

Polarization

E

Rarefaction

medium Difficulty

Physics UTME / JAMB 1983 Waves and Optics

PQ is a thin rod on a horizontal table, RS is a plane mirror inclined at \( 45^{\circ}C\) to the horizontal as shown above. The image of PQ as seen in the mirror by the eye T is

Attached Figure / Diagram

A

horizontal

B

parallel to the mirror

C

at infinity

D

vertical

E

highly magnified

medium Difficulty

Physics UTME / JAMB 1982 Waves and Optics

The echo of a sounder from the bottom of an ocean is heard 2.5 seconds later. If the speed of sound in water is 1,400ms-1, the depth of the ocean is

A

1,750m

B

3,500m

C

1,400m

D

2,800m

E

2,100m

medium Difficulty

Physics UTME / JAMB 1982 Waves and Optics

The combination of sound waves with different frequencies is known as

A

interference

B

diffraction

C

superposition

D

forced vibration

E

resonance

medium Difficulty

Physics UTME / JAMB 1982 Waves and Optics

Two mirrors of the same length are arranged as shown above, a ray of light NO strikes the system at O and emerges along PQ. The emergent ray has been deviated through

Attached Figure / Diagram

A

220 degrees

B

200 degrees

C

210 degrees

D

180 degrees

E

230 degrees

medium Difficulty

Physics UTME / JAMB 1981 Waves and Optics

Which of the following statements is applicable to a real image formed by a concave mirror? i. it can be observed on a screen ii. it is always inverted and in front of the mirror iii. it only seams to exist IV. it is formed by the actual converging of rays of light

A

i, ii and iii

B

i, ii and iv only

C

i and ii only

D

i and ii only

E

all four statements

medium Difficulty

Physics UTME / JAMB 1981 Waves and Optics

The following types of waves are transverse EXCEPT

A

light waves

B

radio waves

C

sound waves

D

surface waves on water

E

X-rays

medium Difficulty

Physics UTME / JAMB 1981 Waves and Optics

Which of the following does NOT describe the image formed by a plane mirror?

A

erect

B

laterally inverted

C

same distance from mirror as object

D

magnified

E

virtual

medium Difficulty

Physics UTME / JAMB 1981 Waves and Optics

If a source of sound is moving, a stationary listener will hear a sound of different frequency. This is called

A

Doppler effect

B

Resonance

C

Ultra sound

D

Diffraction of sound

E

Rarefaction

medium Difficulty

Physics UTME / JAMB 1981 Waves and Optics

When a ray of light passes from water to glass, it is

A

bent away from the normal

B

bent towards the normal

C

totally internally reflected

D

absorbed by the glass

E

broken into a pure spectrum

medium Difficulty

Physics UTME / JAMB 1981 Waves and Optics

All of the following frequencies are overtones of 320 Hz EXCEPT

A

960Hz

B

640Hz

C

520Hz

D

1280Hz

E

1600Hz

medium Difficulty