Courses » WAEC » WAEC Physics » Physics Exam Topics » 2003 - Questions and Answers

2003 - WAEC Physics Past Questions and Answers - page 2

11

a metal rod of length 100cm is heated through 100oC, calculate the change in length of the rod [linear expansivity of the material of the rod is 3 x 10-6K-1]

A
4mm
B
3mm
C
2mm
D
1mm
Ask EduPadi AI for a Detailed Answer
12

The heat capacity of a calorimeter is the amount of energy required to

A
change the temperature of 1kg of the calorimeter by 1k
B
change 1kg mass of the calorimeter to liquid at the same temperature
C
change the temperature of the calorimeter
D
melt the calorimeter into liquid at a constant temperature
Ask EduPadi AI for a Detailed Answer
13

Which of the following statement about latent heat of vaporization is correct? It

A
weakens the adhesive force between molecules of a liquid and those of its container
B
breaks completely the force of attraction completely between the molecules of a liquid
C
add to the heat content of a liquid
D
increases the cohesive forces between liquid molecules
Ask EduPadi AI for a Detailed Answer
14

When the pressure of a fixed mass of gas is doubled at constant temperature, the volume of the gas is

A
increased four times
B
doubled
C
unchangeable
D
halved
Ask EduPadi AI for a Detailed Answer
15

The volume of a given mass of an ideal gas at 327k and 9.52 x 104 Pa is 40cm3. calculate the volume of the gas at 273k and 1.034 x 105Pa.

A
68.23cm3
B
47.91cm3
C
44.60cm3
D
30.75cm3
Ask EduPadi AI for a Detailed Answer
16

A wave of weight length 0.30m travels 900m in 3.0s, calculate its frequency

A
68.0Hz
B
225.0Hz
C
1000Hz
D
750.0Hz
Ask EduPadi AI for a Detailed Answer
17

Which of the following condition is necessary for the occurrence of total internal reflection of light?

A
light must travel from an optical less dense to a denser medium
B
the angle of incidence must be equal to the critical angle
C
the angle of incidence must be greater than the critical angle
D
the angle of refraction must be 90o
Ask EduPadi AI for a Detailed Answer
18

The image which cannot be formed on a screen is said to be

A
inverted
B
erect
C
real
D
virtual
Ask EduPadi AI for a Detailed Answer
19

An object is placed on the principal axis and at the centre of curvature of a concave mirror, the image of the image formed by the mirror is

A
real and magnified
B
real and inverted
C
erect and magnified
D
erect and virtual
Ask EduPadi AI for a Detailed Answer
20

A converging lens produces an image four times as large as an object placed 25cm from the lens. Calculate its focal length

A
100cm
B
33cm
C
29cm
D
20cm
Ask EduPadi AI for a Detailed Answer
Please share this, thanks:

Study with EduPadi CBT App?

Courses

SS1SS2SS3JAMBWAECJSS1JSS2JSS3

Featured Posts

137 Best Happy New Week Wishes, Messages & PrayersJAMB Past Questions & Answers PDF (FREE downloads, all subjects)127 Heartfelt Good Morning Love Messages for Her to Brighten Her DayThe Life Changer 130 Possible Questions And Answers10 Reasons Doctors Are Better Than Teachers - Argumentative EssayBest Commercial Courses To Study In Nigeria (Highest Paid)SS1 Physics Scheme of Work (1st, 2nd, 3rd term)Reasons Teachers Are Better Than Doctors - ArgumentativeFree JAMB CBT Practice with Past Questions With Answers – Study OnlineJAMB 2025 WhatsApp Group Chat For Candidates (Join Now)