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.
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.
Related questions
Question
Please answer questions no 2 ,do it soon i will give u like
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
POCO
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 5 steps
