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 1051: Steam burn is more severe than that of boiling water because
Options:
A) steam burn is independent of relative humidity
B) stem possesses greater heat energy per unit mass
C) water boils at a higher temperature
D) steam burn is dependent on relative humidity
Show Answer
The correct answer is B .
-
Question 1052:
A body executing a simple harmonic motion has an angular velocity of 22 radians per second. If it has a maximum
Options:
A) 1100ms-1
B) 440 ms-1
C) 220 ms-1
D) 22 ms-1
E) 2.2ms-1
Show Answer
The correct answer is E .
-
Question 1053:

The diagram above shows a velocity - time graph. The statement that is true about this motion is that the car
Options:
A) has no acceleration between point F and G
B) decelerates between F and H
C) has a constant soeed between points E and F
D) Accelerates between points F and G
Show Answer
The correct answer is A .
-
Question 1054: When an a.c. voltage is applied to a capacitor, no power is consumed because the current
Options:
A) leads the voltage by 90°
B) lags behind the voltage by 90°
C) and voltage are in phase
D) and voltage are 180° out of phase
Show Answer
The correct answer is A .
-
Question 1055: A cell of emf 1.5V is connected in series with a 1Ω resistor and a current of 0.3A flows through the resistor. Find the internal resistance of the cell
Options:
A) 4.0Ω
B) 3.0Ω
C) 1.5Ω
D) 1.0Ω
Show Answer
The correct answer is A .
-
Question 1056: A metal block of mass 5kg lies on a rough horizontal platform. If a horizontal force of 8N applied to the block through its center of mass just slides the block on the platform, then the coefficient of limiting friction between the block and platform is
Options:
A) 0.16
B) 0.63
C) 0.80
D) 1.60
E) 2.00
Show Answer
The correct answer is A .
-
Question 1057:
In the molecular explanation of conduction, heat is transferred by the
Options:
A) Free electrons
B) Free atoms
C) Free molecules
D) Free solids
Show Answer
The correct answer is A .
-
Question 1058:
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 1059: To protect a material from the influnce of an external magnetic field, the materials should be kept
Options:
A) square steel ring
B) triangular zinc ring
C) soft iron ring
D) loop of copper wire
Show Answer
The correct answer is C .
-
Question 1060:

In the J-tube above, Y and X are on the same horizontal level and 30cm3 of air is trapped above Y when the atmospheric pressure is 75cm Hg, calculate the volume of air trapped above Y when 15cm Hg is now poured into the limb above X
Options:
A) 15 cm3
B) 25 cm3
C) 35 cm3
D) 45 cm3
Show Answer
The correct answer is B .