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Title: the sketch shows a concave lens and an object on its optical axis
Description: exam questions with complete answer and explanation
Description: exam questions with complete answer and explanation
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Answer
Question 1
...
78 cm
Question 3
...
Ø1 = 40
...
Let u = 22cm , distance of the object from the center
f = 13 cm , focal length
Required:
v = ?, position of he image
Solution :
1/f = 1/v + 1/u
1/13 = 1/v + 1/22
1/v = 1/13 -1/22
1/v = 0
...
031
v = 31
...
Polarization angle , øb
tan øb = n2/n1
= 1
...
48
-1
Øb= tan (1
...
95°
Solve for incident angle , Øi ,
Light travels from water to air
n1 = 1
...
48(sinøi)= 1(sin55
...
56)
Øi = 34°
Question 5
...
35(sin 29)
sinØ1 = 0
...
65)
Ø1 = 40
Title: the sketch shows a concave lens and an object on its optical axis
Description: exam questions with complete answer and explanation
Description: exam questions with complete answer and explanation