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Consider an equiconvex lens of radius of curvature R and focal length f. If f>R, the refractive index μ of the material of the lens.
13
Nov
Consider an equiconvex lens of radius of curvature R and focal length f. If f>R, the refractive index μ of the material of the lens. Consider an equiconvex lens of radius of curvature R and focal length f. If f>R the refractive index μ of the material of the lens. November 13, 2020 Category: Cengage [...]
A ray of light passes from glass, having a refractive index of 1.6 to air. The angle of incidence for which the angle of refraction is twice the angle of incidence is
13
Nov
A ray of light passes from glass, having a refractive index of 1.6 to air. The angle of incidence for which the angle of refraction is twice the angle of incidence is A ray of light passes from glass having a refractive index of 1.6 to air. The angle of incidence for which the angle [...]
What should be the value of distance d so that final image is formed on the object itself. (Focal lengths of the lenses are written on the lenses.)
13
Nov
What should be the value of distance d so that final image is formed on the object itself. (Focal lengths of the lenses are written on the lenses.) What should be the value of distance d so that final image is formed on the object itself. (Focal lengths of the lenses are written on the [...]
Behind a thin converging lens having both the surfaces of the same radius 10 cm, a plane mirror has been placed. The image of an object at a distance of 40 cm from the lens is formed at the same position. What is the refractive index of the lens?
13
Nov
Behind a thin converging lens having both the surfaces of the same radius 10 cm, a plane mirror has been placed. The image of an object at a distance of 40 cm from the lens is formed at the same position. What is the refractive index of the lens? a plane mirror has been placed. [...]
A beam of light propagates through a medium 1 and falls onto another medium 2, at an angle α 1 as shown in Fig. After that, it propagates in medium 2 at an angle α2 as shown. The light’s wavelength in medium 1 is λ1. What is the wavelength of light in medium 2?
13
Nov
A beam of light propagates through a medium 1 and falls onto another medium 2, at an angle α 1 as shown in Fig. After that, it propagates in medium 2 at an angle α2 as shown. The light’s wavelength in medium 1 is λ1. What is the wavelength of light in medium 2? A [...]
A thin equiconvex lens (μ=3/2) of focal length 10 cm is cut and separated and a material of refractive index 3 is filled between them. What is the focal length of the combination?
13
Nov
A thin equiconvex lens (μ=3/2) of focal length 10 cm is cut and separated and a material of refractive index 3 is filled between them. What is the focal length of the combination? A thin equiconvex lens (μ=3/2) of focal length 10 cm is cut and separated and a material of refractive index 3 is [...]
Light is incident on a glass block as shown in Fig. If θ1 is increased slightly, what happens to θ 2 ?
13
Nov
Light is incident on a glass block as shown in Fig. If θ1 is increased slightly, what happens to θ 2 ? Light is incident on a glass block as shown in Fig. If θ1 is increased slightly what happens to θ 2 ? November 13, 2020 Category: Cengage JEE Mains Physics by B.M Sharma [...]
You are given two identical plano-convex lenses. When you place an object 20cm to the left of a single plano-convex lens, the image appears 40cm to the right of the lens. You then arrange the two plano-convex lenses back to back to form a double convex lens. If the object is 20cm to the left of this new lens, What is the approximate location of the image?
13
Nov
You are given two identical plano-convex lenses. When you place an object 20cm to the left of a single plano-convex lens, the image appears 40cm to the right of the lens. You then arrange the two plano-convex lenses back to back to form a double convex lens. If the object is 20cm to the left [...]
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the image appears 40cm to the right of the lens. You then arrange the two plano-convex lenses back to back to form a double convex lens. If the object is 20cm to the left of this new lens ,
What is the approximate location of the image? ,
You are given two identical plano-convex lenses. When you place an object 20cm to the left of a single plano-convex lens ,
A SONAR system fixed in a submarine operates at a frequency 40.0kHz. An enemy submarine moves towards the SONAR with a speed of 360 kmh^−1. What is the frequency of sound reflected by the submarine ? Take the speed of sound in water to be 1450 ms^−1.
13
Nov
A SONAR system fixed in a submarine operates at a frequency 40.0kHz. An enemy submarine moves towards the SONAR with a speed of 360 kmh^−1. What is the frequency of sound reflected by the submarine ? Take the speed of sound in water to be 1450 ms^−1. A string of mass 2.50 kg is under [...]
One end of a long string of linear mass density 8.0 ×10^−3 kg/m is connected to an electrically driven tuning fork of frequency 256 Hz. The other end passes over a pulley and is tied to a pan containing a mass of 90 kg. The pulley end absorbs all the incoming energy so that reflected waves at this end have negligible amplitude. At t = 0, the left end (fork end) of the string x = 0 has zero transverse displacement (y = 0) and is moving along positive y-direction. The amplitude of the wave is 5.0 cm. Write down the transverse displacement y as function of x and t that describes the wave on the string :
13
Nov
One end of a long string of linear mass density 8.0 ×10^−3 kg/m is connected to an electrically driven tuning fork of frequency 256 Hz. The other end passes over a pulley and is tied to a pan containing a mass of 90 kg. The pulley end absorbs all the incoming energy so that reflected [...]