Shubham Jha - Class 10
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7 year experience in Training 9th & 10th grade students with special creative techniques.
A memory coach & a passionate educator by choice.
๐Ÿ‘‰ Upcoming FREE class - https://unacademy.com/@shubham0011/courses?&type=special&courses=upcoming
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Shubham - Are Bhai Meri Photos Mat le tu apna le naโ€ฆ.
Saamne waala - Smile Shubham
Shubham - Ye leโ€ฆ with the reactionโ€ฆ.
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If an object is placed symmetrically between two plane mirrors, inclined at angle of 72 degree, then total no. of images formed:
Anonymous Quiz
15%
5
46%
4
19%
2
19%
Infinity
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Focal length of a plane mirror is
Anonymous Quiz
29%
0
52%
Infinty
14%
-25
5%
None
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A beam of light incident on a plane mirror forms a real image on reflection. The incident beam is :
Anonymous Quiz
39%
Parallel
43%
Convergent
16%
Divergent
2%
Not certian
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An image of an object produced on a screen which is about 36 cm using a convex lens. The image produced is about 3 times the size of the object. What is the size of the object?
Anonymous Quiz
40%
12
36%
33
18%
39
6%
10
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Image formed by a convex spherical mirror is
Anonymous Quiz
58%
Virtual
26%
Real
9%
Enlargd
8%
Inverted
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A beam of light incident on a plane mirror forms a real image on reflection. The incident beam is :
Anonymous Quiz
39%
Parallel
44%
Convergent
14%
Divergent
3%
Not certian
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 A student conducts an experiment using a convex lens. He places the object at a distance of 60 cm in front of the lens and observes that the image is formed at a distance of 30 cm behind the lens. What is the power of the lens?
Anonymous Quiz
26%
0.0005
32%
0.005
27%
0.05
14%
5
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) An image of an object produced on a screen which is about 36 cm using a convex lens. The image produced is about 3 times the size of the object. What is the size of the object?
Anonymous Quiz
36%
12cm
32%
14cm
21%
16cm
11%
18 cm
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Image formed by a convex spherical mirror is:
Anonymous Quiz
56%
Virtual
29%
Real
13%
Enlarged
3%
None
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 A student conducts an activity using a flask of height 15 cm and a concave mirror. He finds that the image formed is 45 cm in height. What is the magnification of the image?
Anonymous Quiz
37%
1/3times
34%
2/3 time
16%
3/3times
12%
3 times
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