18.57NC\(^{-1}\)
53.06N C\(^{-1}\)
2.28NC\(^{-1}\)
0.80NC\(^{-1}\)
Correct answer is A
Electric Field Intensity (E) = \(\frac{v}{d}\)
= \(\frac{\text{potential difference}}{\text{distance}}\)
= \(\frac{6.5v}{35cm}\)
= \(\frac{6.5}{35 \times 10^{- 2}}\)
= 18.57NC\(^{-1}\)
Which of the following is not an electromagnetic radiation?
x - ray
Radio waves
sunlight
sound waves
Correct answer is D
Electromagnetic waves do not require any material medium, but sound waves is a mechanical wave that require a material medium
v = f2\(\lambda\)
f = \(\frac{v}{\lambda}\)
f = \(\frac{v}{\lambda^2}\)
\(\lambda = \frac{f}{v^2}\)
Correct answer is B
No explanation has been provided for this answer.
expand
collide less often
move more rapidly
contract
Correct answer is C
No explanation has been provided for this answer.
the freezing point is lowered
the freezing point is increased
there is no change in the freezing point
the change in the freezing point depends on the temperature of the surrounding
Correct answer is A
No explanation has been provided for this answer.