Physics, asked by spandy39, 10 months ago

A plano concave lens has two surfaces R=20cm ,R2=30cm ,n=1.5 what is its focal length

Answers

Answered by pranav2203

0

Answer:

I do not know

Explanation:

SOMEONE PLEASE HELP HIM

Answered by SuraBhaavya

1

Explanation:

thus ,the system will behave as convex lens of focal length 72cm

Attachments:

Previous Question

Next Question

Similar questions

Science, 4 months ago

SAFEDI KE KAM ANE WALA PADHARTH KONSA HAI ?

Math, 4 months ago

sum of two consecutive numbers is 500...

English, 4 months ago

Change the following into indirect speech. 1. Bob said, “ Might is right.” 2. Sonam said to me, “ You may stay here.” 3. I said to him, “Wait here till I return.” 4. The teacher said, “India got freedom on 15 August 1947.” 5. He said, “Let me play in your garden.

English, 10 months ago

1 Minute Speech For Class 8 Interview.

Math, 10 months ago

012. Find 11th term from the end of the AP 3,8,13,........,253...

Math, 1 year ago

what is the value of x and y in x^y=y^x...

Geography, 1 year ago

name the president of Mozambique...

Science, 1 year ago

methyl ethanoate structure...