Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
5V
10V
20V
60V
Correct answer is D
Voltage across 5Ω resistor = IR = 2 × 5 = 10V
Since voltage in a parallel connection is the same, voltage across 10Ω is also 10V
Current flowing across the 10Ω resistor
I = V/R = 10/10
Current I= 1A
Total current flowing = 2 + 1 = 3A
Voltage across 20Ω resistor = IR
= 3 × 20
= 60V
Thunder is usually heard some seconds after lightning is observed because
the human eye is more sensitive to light than the ear to sound
sound and light travel in different media
thunder occurs after lightning
light travels faster than sound
Correct answer is D
No explanation has been provided for this answer.
24.75cm
33.00cm
41.25cm
49.50cm
Correct answer is D
No explanation has been provided for this answer.
short and thick
short and thin
long and thick
long and thin
Correct answer is B
No explanation has been provided for this answer.
The amplitude of a wave is the
distance between two successive troughs of the wave
separation of two adjacent particles vibrating in phase
maximum displacement of the wave particle from the equilibrium position
distance travelled by a wave in a complete cycle of its motion
Correct answer is C
No explanation has been provided for this answer.