Question

(ii) किसी समूह पर अवयवों के संयुग्मिता का सम्बन्ध होता है- (a) मात्र स्वतुल्य सम्बन्ध (b) मात्र सममित सम्बन्ध (c) मात्र संक्रमक सम्बन्ध (d) समतुल्यता का सम्बन्ध
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Answer 1

Answer:

a

Step-by-step explanation:

this is the right answer

Answer 2

Answer:

At what distance from the diverging lens of focal length 30cm, a 5cm tall object be placed so as to obtain its image at 15cm from the lens? Also calculate the size of the image formed 

1. U = -60cm , size of image is = -2.5

2. U = -30cm , size of image = -2.5cm

3. U = -30cm , size of image = +2.5cm

4. U = +60cm , size of image = +2.5cm

Step-by-step explanation:

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