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Q3. (a) What is sharpness of resonance? (b) A body of mass 10g is acted upon by a restoring force per unit displacement of 10' dyne/cm and a retarding force per unit velocity of 4000 dyne/cm-sec". The given driving force is 10 cos(wt) dyne. Find the maximum amplitude at resonance.

Q3. (a) What is sharpness of resonance? (b) A body of mass 10g is acted upon by a restoring force per unit displacement of 10' dyne/cm and a retarding force per unit velocity of 4000 dyne/cm-sec". The given driving force is 10 cos(wt) dyne. Find the maximum amplitude at resonance.

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Please answer questions no 3 ,do it soon i will give u like
Gr-B: Long Answer Type Questions (Attempt Any Four): Q2. (a) Establish the differential equation of forced vibration explaining all terms. (b) Define KE resonance and deduce the condition for it. Q3. (a) What is sharpness of resonance? (b) A body of mass 10g is acted upon by a restoring force per unit displacement of 10' dyne/cm and a retarding force per unit velocity of 4000 dyne/cm-sec. The given driving force is 10°cos(wt) dyne. Find the maximum amplitude at resonance. Q.4. (a)Write down the intensity expression for Fraunhofer diffraction from a single slit. (b) Find out the condition of maxima and minima for intensity. (c) Plot the intensity pattern. Q.5.(a)State two differences between Fresnel and Fraunhofer diffraction. (b)What are missing orders? (c) Find out the missing orders for a double slit with slit width of 0.16 cm and slit separation of 0.8cm. Q.6. (a) Show that the energy is conserved in interference of light. (b) In a Young's double slit experiment, the ratio of maxima to minima in the resultant pattern is 36:1. Find out the intensity ratio of the two individual sources. Q.7.(a)Why are the Newton's rings circular? (b) In a Newton's ring experiment, the diameter of the 12th dark ring changes from 1.50 cm to 1.35 cm when a liquid is introduced between the lens and the glass plate. Calculate the refractive index of the РОСО PC roi KILLER SINGH
Transcribed Image Text:Gr-B: Long Answer Type Questions (Attempt Any Four): Q2. (a) Establish the differential equation of forced vibration explaining all terms. (b) Define KE resonance and deduce the condition for it. Q3. (a) What is sharpness of resonance? (b) A body of mass 10g is acted upon by a restoring force per unit displacement of 10' dyne/cm and a retarding force per unit velocity of 4000 dyne/cm-sec. The given driving force is 10°cos(wt) dyne. Find the maximum amplitude at resonance. Q.4. (a)Write down the intensity expression for Fraunhofer diffraction from a single slit. (b) Find out the condition of maxima and minima for intensity. (c) Plot the intensity pattern. Q.5.(a)State two differences between Fresnel and Fraunhofer diffraction. (b)What are missing orders? (c) Find out the missing orders for a double slit with slit width of 0.16 cm and slit separation of 0.8cm. Q.6. (a) Show that the energy is conserved in interference of light. (b) In a Young's double slit experiment, the ratio of maxima to minima in the resultant pattern is 36:1. Find out the intensity ratio of the two individual sources. Q.7.(a)Why are the Newton's rings circular? (b) In a Newton's ring experiment, the diameter of the 12th dark ring changes from 1.50 cm to 1.35 cm when a liquid is introduced between the lens and the glass plate. Calculate the refractive index of the РОСО PC roi KILLER SINGH
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