Question

Q. The focal length of a lens whose power is -1.5 D is
1. -66.66 cm
2. + 1.5 m
3. + 66.66 cm
4. -1.5 m​

Answer 1

Answer:

-66.66cm is correct answer

Step-by-step explanation:

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Answer 2

Answer:

In the school on 22nd May; Art teacher has given a class assignment to the students to

draw a painting for class room display. Deepak has drawn the figure given below.

Science teacher appreciate Deepak and awarded him with a prize. Why he has drawn

this figure? Do you think is it right to award him for his painting? Explain your

opinion

Step-by-step explanation:

-66.6