Which of the following defects of vision is as a result of the eye ball being too long?
long sight
astigmatism
short sight
loss of accommodation
Correct answer is C
No explanation has been provided for this answer.
1 cm
9cm
12cm
15cm
Correct answer is B
\(\frac{v}{u} = \frac{hi}{ho} = \frac{60}{20} = \frac{hi}{3}\)
hi = 9cm
When viewed straight down, a fish in a pond is
father below than it appears to be
mearer than it appears to be
found at exactly the same point it is seen
seen beside its image
Correct answer is B
No explanation has been provided for this answer.
The image of an object formed by a convex mirror is
real, errect and enlarged
real, inverted and enlarged
virtual, erect and diminished
virtual, erect and enlarge
Correct answer is C
No explanation has been provided for this answer.
2.00m behind the mirror
2.00m in front of the mirror
1.25m in front of the mirror
1.25m behind the mirror
Correct answer is A
\(\frac{1}{v} = \frac{1}{f} - \frac{1}{u}\)
\(\frac{1}{2} - \frac{1}{1} = \frac{1 - 2}{2} = -2\)