Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.
-
Question 1101:
The refractive index of a liquid is 1.5. If the velocity of light in vacuum is 3.0 x 10, the velocity of light in the liquid is
Options:
A) 1.5 x 10
B) 2.0 x 10
C) 3.0 x 10
D) 4.5 x 10
Show Answer
The correct answer is B .
-
Question 1102: Two cells each of e.m.f. 1.5V and an internal resistance 2 are connected in parallel. Calculate the current flowing when the cells are connected to a 1 resistor
Options:
A) 0.75
B) 1.5
C) 0.5
D) 1.0
E) 0.6
Show Answer
The correct answer is A .
-
Question 1103: Calculate the electric field intensity between two plates of potential difference 6.5V when separated by a distance of 35cm.
Options:
A) 18.57NC
B) 53.06NC
C) 2.28NC
D) 0.80NC
Show Answer
The correct answer is A .
-
Question 1104:
Which of the following liquid is a poor conductor of electricity?
Options:
A) Distilled water
B) Tap water
C) Sea water
D) Drinking water
Show Answer
The correct answer is A .
-
Question 1105: Which of the following statements are NOT correct?
Options:
A) boiling occurs when the saturated vapour pressure of the liquid involved equals the external pressure
B) both the boiling point and the saturated vapour pressure of a given liquid depends on the external pressure
C) the saturated vapour presssure rises with increase in temperature
D) the saturated vapour pressure is independent of the volume available for the vapour
E) it is possible to boil water at a lower temperature than 100oC at high altitude
Show Answer
The correct answer is E .
-
Question 1106: To keep a vehicle moving at a constant speed v, requires power P, from the engine. The force provided by the engine is
Options:
A)
B) v
C) pv
D) v
Show Answer
The correct answer is A .
-
Question 1107:
In the above circuit, The fuse wire melts when
Options:
A) K is Opened
B) K is closed
C) the 14 ohm resistor is doubled with k closed
D) the 6 ohm resistor is doubled with k closed
Show Answer
The correct answer is B .
-
Question 1108:
Rainbow formation is as a result of the combination of which of the following phenomena?
(i) Reflection
(ii) Dispersion
(iii) Total internal reflection
(iv) Refraction
Options:
A) (ii) and (iv) only
B) (i), (iii) and (iv) only
C) (ii), (iii) and (iv) only
D) (i), (ii) and (iv) only
Show Answer
The correct answer is C .
-
Question 1109:
The equation of a wave travelling along the positive x-direction is given by;
Y = 0.25 x 10-3 sin (500t - 0.025x).
Determine the angular frequency of the wave motion.
Options:
A) 0.25 x 10-3rad s-1
B) 0.25 x 10-1rad s-1
C) 5.00 x 102rad s-1
D) 2.50 x 103rad s-1
Show Answer
The correct answer is C .
-
Question 1110: The latent heat of fusion of ice is 80cal g-1. How much heat is required to change 10g of ice at QoC into water at the same temperature?
Options:
A) 80 cal
B) 10 cal
C) 8 cal
D) 800 cal
E) 400 cal
Show Answer
The correct answer is D .