Subject: Physics, asked 1 day, 18 hours ago

## A slit of width 0.6 mm is illuminated by a beam of light consisting of two wavelengths 600 nm and 480 nm. The diffraction pattern is observed on a screen 1.0 m from the slit. Find (i) The distance of the second bright fringe from the central maximum pertaining to light of 600 nm. (ii) The least distance from the central maximum at which bright fringes due to both the wavelengths coincide.

Subject: Physics, asked 1 day, 18 hours ago

## (a) Use Bohr's postulate to prove that the radius of nth orbit in hydrogen atom is proportional to n2. (b) How will the energy of a hydrogen atom change if n increases from 1 to ∞ ?

Subject: Physics, asked 1 day, 18 hours ago

## Kindly answer the question A ray of light passes through a prism of refractive index √2 as shown in the figure. Find: (i) The angle of incidence (∠r2,) at face AC. (ii) The angle of minimum deviation for this prism.

Subject: Physics, asked 1 day, 18 hours ago

## Kindly answer the question. (a) Draw V-l characteristics of a p-n Junction diode. (b) Differentiate between the threshold voltage and the breakdown voltage for a diode. (c) Write the property of a junction diode which makes it suitable for rectification of ac voltages.

Subject: Physics, asked 1 day, 19 hours ago

## In a fission event of  23892U by fast moving neutrons, no neutrons are emitted and final products, after the beta decay of the primary fragments, are 14058Ce and 9944Ru. Calculate Q for this process. Neglect the masses of electrons/ positrons emitted during the intermediate steps.

Subject: Physics, asked 1 day, 19 hours ago

## Ultra-violet light of wavelength 200 nm from a source is incident on a metal surface. If the stopping potential is -2.5 V, (a) calculate the work function of the metal, and (b) How would the surface respond to a high intensity red light of wavelength 6328 ? produced by a laser?

Subject: Physics, asked 1 day, 19 hours ago

## Find the two possible positions of an object kept in front of a lens of 5.0 D, so that the image formed in both cases is four times magnified.

Subject: Physics, asked 1 day, 22 hours ago

Subject: Physics, asked 1 day, 22 hours ago

Subject: Physics, asked 2 days, 2 hours ago

## The angular magnification of astronomical telescope of distant object is 5. If the distance between objective and eye piece is 36 cm and the final image is formed at infinity then the focal length of its objective and eye piece will be?

Subject: Physics, asked 2 days, 9 hours ago

Subject: Physics, asked 2 days, 10 hours ago

## which type of reaction produces most harmful radiation a)Fusion reaction b)Chemical reaction C) Fission Reaction D)Photochemical reaction

Subject: Physics, asked 2 days, 10 hours ago

## Which type of reaction produces the most harmful radiation?

Subject: Physics, asked 2 days, 11 hours ago

## The wavelength of incident photon is lambda and work function of metallic surface is W; what is the minimum kinetic energy?

Subject: Physics, asked 2 days, 12 hours ago

## explain the answer of this question

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