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.
According to kinetic molecular model, in gases
The molecule are very fast apart & occupy all the space made available
The particles occur in clusters with molecules slightly farther apart
The particles vibrate about fixed positions and are held together by the strong intermolecular bond between them
The particles are closely packed together, they occupy minimum space & are usually arranged in a regular pattern
Correct answer is A
In kinetic molecular model, gases are energized and thus moves freely, fast as they occupy specific space
200\(^o\)C
300\(^o\)C
100\(^o\)C
-100\(^o\)C
Correct answer is D
L\(_1\) = 100cm, T\(_1\) = 200\(^o\)C
L\(_2\) = 99.4cm,T\(_2\) = ?
\(\alpha\) = 2 x 10\(^{-5}\)C\(^{-1}\)
\(\alpha\) = \(\frac{L_2 - L_1}{L_1(T_2 - T_1)}\)
2 x 10\(^{-5} = \frac{99.4 - 100}{100( T_2 - 200)} = \frac{-0.6}{100(T_2 - 200)}\)
2 x 10\(^{-5}\) x \(100(T_2 - 200) = -0.6\)
\(T_2 - 200 = \frac{-0.6}{0.002} = - 300^oC\)
\(T_2 = 200 - 300 = -100^oC\)
When blue and green colours of light are mixed, the resultant colour is
cyan
magenta
black
yellow
Correct answer is A
Cyan is a bluish-green colour
oscillation
circular
rotational
rectilinear
Correct answer is B
Circular motion has uniform
I only
I & IV only
II only
III only
Correct answer is C
- Friction depends on the nature of the surfaces in contact