Which of the following statements about the image formed by a plane mirror is not correct?
it is laterally inverted
it has unit magnification
it is formed by actual intersection of rays
its distance from the mirror is equal to that of the object from the mirror
Correct answer is C
No explanation has been provided for this answer.
Ether produces a cooling effect when it is poured on the hand because it has
low conductivity
high conductivity
high latent heat of vaporization
low latent heat of vaporization
Correct answer is C
No explanation has been provided for this answer.
150 Jkg-1K-1
300 Jkg-1K-1
320 Jkg-1K-1
1960 Jkg-1K-1
Correct answer is A
MC\(\theta\)metal = MC\(\theta _{water}\)
0.2 x C x 70 = 0.1 x 4200 x 5
C = 150
0.2s
2.5s
25.0s
250.0s
Correct answer is C
t = \(\frac{fs}{p} = \frac{20 \times 500}{0.4 \times 1000} = 25s\)
Which of the following assumptions is not valid for an ideal gas?
molecules of a particular gas are identical
molecules moves freely throughout the volume of the container
force of attraction between molecules is negligible
molecules move at constant speed between collisions
Correct answer is C
No explanation has been provided for this answer.