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Optics
In YDSE with two identical slits, when upper slit is covered with a transparent sheet of mica, second order minima is observed above the centre of the screen and second order maxima below it. Which of the following can not to possible value of phase difference caused by mica sheet?
1)π/3
2)7π/2
3)10π/3
4)11π/3
1)π/3
2)7π/2
3)10π/3
4)11π/3
Optics
What is the min distance between a real object and a real image formed by a convex lens of focal length f?
Optics
A 1200 kg Toyota Echo is accelerating down a hill. The hill is 150 m long and the total distance in elevation of the hill is 15 m. The car accelerates from a speed of 2.0 m/s at the top to an unknown velocity at the bottom in 11 s. The power of the car is 9.6 kW, while the average retarding force of friction is 600 N. Find the speed of the car at the bottom of the hill.
Optics
a single slit has a width of .04mm . a parallel beam of wavelength 560 nm is incident normally on it. if the distance between the slit and the screen is 100 cm, calculate the sepration between the central maximum and the second minima in the diffration pattern
Optics
Obtain the conditions for observing maxima and minima in a Young two-slit
interference pattern. Show that these conditions change when a thin transparent
sheet of thickness t and refractive index µ is introduced in the path of one of the
superposing beams.
interference pattern. Show that these conditions change when a thin transparent
sheet of thickness t and refractive index µ is introduced in the path of one of the
superposing beams.
Optics
State, with reasons, whether the following statements are True or False
Slew rate of an op-amp influences its frequency response
Slew rate of an op-amp influences its frequency response
Optics
State, with reasons, whether the following statements are True or False
Rectification efficiency is proportional to the number of diodes used in a rectifier circuit
Rectification efficiency is proportional to the number of diodes used in a rectifier circuit
Optics
State Fermat’s principle. On the basis of this principle, show that when light passes
from a medium of lower refractive index to a medium of higher refractive index, it
bends towards the normal to the interface between the two media.
from a medium of lower refractive index to a medium of higher refractive index, it
bends towards the normal to the interface between the two media.
Optics
A light ray was incident perpendicular to the boundary that separates water from glass. What is the angle of refraction that the light will make? Explain your answer.
Optics
Which parameters of an op-amp become significant for a fast varying ultra low input
voltage signal? What should be the values of these parameters for a triangular wave
signal of ±5 mV peak to peak with 50 MHz frequency given to a unity gain op-amp
amplifier?
voltage signal? What should be the values of these parameters for a triangular wave
signal of ±5 mV peak to peak with 50 MHz frequency given to a unity gain op-amp
amplifier?
