to determine the focal length of concave mirror , a student focus a distant object using concave mirror, the best object can be
1 a distant tree
2) class room window
3) Sun
Answers
Answered by
2
a distant tree.
hope it helps!!
hope it helps!!
dainvincible1:
yes..bt both da answers r different
a distant tree's image can be easily taken on the screen and is easier to write observations.
u've a point
logical point..n she has practical point
we have performed the experiment n lab
ohhh
same pinch!! I'm bit theoretical not practical
yeess
though good luck with it !!
yees....
Answered by
1
Hope this helps you...
(2) class room window. The focal length of the mirror can be calculated correctly only when we know the object distance and the image distance correctly for experiment. In case of a tree, electric pole, distant building, grills etc the object distance are not known correctly. Also in any of these the object distance is not infinite. So, the best option is class room window. The distance of the window of the mirror can be measured easily using a scale and a sharp image can be formed on a screen. Measuring the image distance we can easily calculate the focal length of the concave mirror.
(2) class room window. The focal length of the mirror can be calculated correctly only when we know the object distance and the image distance correctly for experiment. In case of a tree, electric pole, distant building, grills etc the object distance are not known correctly. Also in any of these the object distance is not infinite. So, the best option is class room window. The distance of the window of the mirror can be measured easily using a scale and a sharp image can be formed on a screen. Measuring the image distance we can easily calculate the focal length of the concave mirror.
can u tell y
Debating type of question
you've done wrong...n seen the answer wrong..
yeah an object even can be at infinity
So, the correct option is d (a burning candle placed at the distant edge of the laboratory table).....it was written kinda something like this
so we can take object at infinity
where's d?
idk.....i'm very weak at physics
please give right answer. I am confused.
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