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.
4. 0 cm
3. 0 cm
12. 0 cm
9. 0 cm
Correct answer is C
f = -12 cm, v = - 6 cm
(1)/v + (1)/u =(1)/f
(1)/-6 + (1)/u = (1)/-12
(1)/u = (1)/-12 + (1)/6 = (1 + 2)/12 = (1)/12
∴ u = 12 cm
10 cm in front of the mirror
5 cm in front of the mirror
10 cm behind the mirror
5 cm behind the mirror
Correct answer is C
u = 5 cm , f = 10 cm, v = ?
(1)/v + (1)/u = (1)/f
(1)/v + (1)/5 = (1)/10
= (1)/v = (1)/10 - (1)/5
= (1 - 2)/10 = (1)/10
∴ v = - 10 cm
∴ The image is 10 cm behind the mirror
I. Moon.
II. Sun.
III.street light.
IV. stars.
Which of these are natural sources of light?
II, III, and IV only
I, II and III only
III and IV only
II and IV only
Correct answer is D
The sun and stars are self luminous object.
quality
pitch
intensity
loudness
Correct answer is A
The quality of a note is a characteristic that distinguishes it from note of the same frequency played by another musical instrument.
A man standing 2 m from a charcoal fire is warmed mainly by?
convection
radiation
refraction
conduction
Correct answer is B
Radiation is the method of heat transfer with or without a material medium. It can be through space or through a material medium.