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You are given 3 lenses l1,l2,l3 each of focal length 20 an object at 40cm in front of l1.the final real image is formed at focus i ofl3,find separation between l1,l2,l3 ?Ans) between l1&l2 its 60 & between l2&l3 it can be any value...........for l3 to form image at i, the object must be at infinity, and for that, image formedby l1 must be at the focus of l2,and also image formed by l1 is 40 cm ahead of l1, i.e., the focus of l2(20 cm)so, distance between l1 and l2 is 40+20=60 cm........
Laws of Refraction: There are two laws of refraction. The incident ray, the refracted ray and the normal to the surface of the point of incidence all lie at the similar plan
investigatory poject class 12
The residual enthalpy of saturated CO2, as calculated from the SRK equation of sate, is given below The ideal gas heat capacity of carbon dioxide is = 33 J/mol/K and ca
A single movable pulley Suspend two pulleys on a cord from a horizontal support, and load them as shown. If there is no adjustable support on the expression desk, a window stic
Does upthrust change in different liquids (examples please)
During a space launch, an astronaut typically undergoes an acceleration of 3 gs, which means he experiences an acceleration that is three times that of gravity alone. What wou
A body moves along x-axis with velocity v at position x. If the plot v-x is an ellipse with major axis 2A and minor axis 2u, what is the modulus of maximum acceleration?
What is Thermodynamics ?
Q. Why do you not collapse in the pressure created by the atmosphere? Answer:- If the outward pressure inside your body weren't equal to the pressure pressing in on you an
Dual Nature of Light: As light is accepted as a form of waves as well as packets of photon. This nature of light is known as dual nature of light.
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