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Recent questions tagged examplar

If the two slits in young's experiment have width $1:4$ deduce the ratio of intensity at maxima and minima in the interference pattern .

asked Jun 17, 2016 by meena.p

1 answer

What does red shift in the spectra of galaxies indicates?

asked Jun 17, 2016 by meena.p

1 answer

Sound waves cannot be polarized . Why ? Only transverse waves can be polarized .But sound waves are longitudinal. so cannot be polarized.

asked Jun 17, 2016 by meena.p

1 answer

A screen is placed 50 cm from a single slit which is illuminated with $6000 ^{\circ}$ light . If the distance between the first and third minima in the diffraction pattern is $3.00\;nm$ , what is the width of the slit ?

asked Jun 16, 2016 by meena.p

1 answer

In a single slit diffraction experiment , first minimum for red light $(660 nm)$ coincides with first maximum of some other wavelength $ \lambda$ calculate $\lambda$. calculate $\lambda$

asked Jun 16, 2016 by meena.p

1 answer

The human eye has an approximate angular resolution of $ \phi = 5.8 \times 10^{-4}rad,$ and a typical photo printer prints a minimum of 300 dots per inch (1 inch =2.54 cm) . At what minimal distance z should a printed page be held so that one does not see the individual dots ?

asked Jun 16, 2016 by meena.p

1 answer

Why is the diffraction of sound waves more evident in daily experience than that of light wave ?

asked Jun 16, 2016 by meena.p

1 answer

What is the shape of the wave front on earth for sunlight ?

asked Jun 16, 2016 by meena.p

1 answer

Is Huggers principle valid for longitudinal sound waves ?

asked Jun 16, 2016 by meena.p

1 answer

Consider sunlight incident on a pinhole of width $10^3\;A$ . The image of the pinhole seen on a screen shall be

asked Jun 16, 2016 by meena.p

1 answer

Consider the diffraction pattern for a small pin hole. As the size hole is increased

asked Jun 16, 2016 by meena.p

1 answer

For light diverging from a point source ,

asked Jun 15, 2016 by meena.p

1 answer

The radius of curvature of a plano - convex . lens is 20 cm If the refractive index of the material of the lens be $1.5$ it will

asked Jun 15, 2016 by meena.p

1 answer

A short pulse of white light is incident from air to glass slab at normal incident . After travelling through the slabs, the first colour to emerge is

asked Jun 15, 2016 by meena.p

1 answer

A cubical region of space is filled with some uniform electric and magnetic fields . An electron enters the cube magnetic fields. An electron enters the cube across one of its faces with velocity $\overrightarrow {v}$ and a position enters via opposite face with velocity - $\overrightarrow v$ At this instant .

asked Jul 30, 2015 by meena.p

1 answer

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