1800-150-456-789
FlagBACK
Flag Wave Optics> An object is placed in front of two conve...
question mark

An object is placed in front of two convex lenses one by one at a distance u from the lens.Tge focal length of the lenses are 30cm and 15cm respectively .If the size of the image formed in the two is the same then u is?(answer given is 20 cm)

Qazi 1 , 8 Years ago
Grade 12th pass
anser 1 Answers
Rituraj Tiwari

Last Activity: 4 Years ago

657-1452_Annotation 2020-08-14 210728.png657-2317_Annotation 2020-08-14 210706.png

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Other Related Questions on wave optics

question mark
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
0 Answer Available

Last Activity: 3 Years ago

question mark
A PLANE TRANSMISSION GRATING HAS 45000 LINES. DETERMINE ITS RESOLVING POWER IN THE SECOND ORDER FOR WAVELENGTH OF 5000A.
 
wave optics
0 Answer Available

Last Activity: 3 Years ago

question mark
A PLANE TRANSMISSION GRATING HAS 45000 LINES. DETERMINE ITS RESOLVING POWER IN THE SECOND ORDER FOR WAVELENGTH OF 5000A.
wave optics
0 Answer Available

Last Activity: 3 Years ago

question mark
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: 3 Years ago

question mark
What is the difference between angular position and angular fringe width... I always get confused .
wave optics
2 Answers Available

Last Activity: 3 Years ago