help@askiitians.com

+91-87964 74404

Grade 12th passWave Optics

A concave mirror mirror of focal length 20cm is cut into two parts from the middle and the two parts are moved perpendicularly by a distance 1 mm from the previous principal axis AB. Find the distance between the images formed by the two parts.

CA

8 Years agoGrade 12th pass

2 Answers

Arun

8 Years ago

Here central length will be same as before that is 20 cm = 0.2 m

The question separation will be = 0.01 m

At that point from the mirror equation

1/v+1/u = 1/f

? 1/v-100 = 5

? 1/v = 105

? v = 1/105 m

Viajy

8 Years ago

Both images moved 0.5mm away from the principal axis before separation of mirrors.so the distance between the two images is 1mm

what is meant by refractive index?

wave optics

1 Answer Available

Last Activity: 9 Months ago

An oscillator consists of a block of mass 512 g connected to a spring. When set into oscillation with amplitude 34.7 cm, it is observed to repeat its motion every 0.484 s. Find (a) the period, (b) the frequency, (c) the angular frequency, (d) the force constant, (e) the maximum speed, and ( f ) the maximum force exerted on the block.

wave optics

1 Answer Available

Last Activity: 4 Years ago

A PLANE TRANSMISSION GRATING HAS 45000 LINES. DETERMINE ITS RESOLVING POWER IN THE SECOND ORDER FOR WAVELENGTH OF 5000A.

wave optics

1 Answer Available

Last Activity: 4 Years ago

A PLANE TRANSMISSION GRATING HAS 45000 LINES. DETERMINE ITS RESOLVING POWER IN THE SECOND ORDER FOR WAVELENGTH OF 5000A.

wave optics

1 Answer Available

Last Activity: 4 Years ago

If V-numer of a multi mode fiber is 3. Calculate the no.of modes if it is step index and graded index fiber multimode fiber (rounded off)?

wave optics

1 Answer Available

Last Activity: 4 Years ago

View all Questions