It is observe that whenever two or more bodies interact with each other the resultant of theīody remains unchanged. Ĭhapter 11: Dual Nature of Radiation and Matterġ.Whenever a body is move during a line with reference to another body an opposite force is working on the thing to prevent it's motion this force is understood because the frictional force. Estimate the number of fringes obtained in Young’s double slit experiment with fringe width 0.5 mm, which can be accommodated within the region of total angular spread of the central maximum due to single slit. Find the angular width of the central maximum obtained on the screen. A monochromatic light of wavelength 500 nm is incident normally on a single slit of width 0.2 mm to produce a diffraction pattern. Explain two features to distinguish between the interference patterns in Young’s double slit experiment with the diffraction pattern obtained due to a single slit. Find the intensity of the light transmitted by P2. The light transmitted by it is then incident on a second Polaroid P2 with its pass axis making angle of 60 relative to the pass axis of P1. How does one get linearly polarised light with the help of a Polaroid? A narrow beam of unpolarised light of intensity I0 is incident on a Polaroid P1. Distinguish between unpolarised light and linearly polarised light. Why should the objective of a telescope have large focal length and large aperture? Justify your answer. Calculate the maximum value of the current in the coil. cm and 20 terns is rotated about the vertical diameter with angular speed of 50 rad/s in a uniform magnetic field of magnitude 3.0 × 10^-2 T. A circular coil of cross-sectional area 200 sq. Derive the expression for the instantaneous value of the emf induced in the coil. Obtain the expression for the mutual inductance of two long co-axial solenoids S1 and S2 wound one over the other, each of length L and radii r1 and r2 and n1 and n2 number of terns per unit length, when a current I is set up in the outer solenoid S2. Define the term ‘Self Inductance’ and write its S.I. If the current through the wire increases, will there be an increase induced emf in the loop? Justify.
A long straight current carrying wire passed normally through the centre of circular loop. What is the value of horizontal component of the Earth’s magnetic field at equator? ġ.
At a place, the horizontal component of Earth’s magnetic field is B and angle of dip is 60.
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