Physics-
General
Easy
Question
Two coherent radio point sources that are separated by 2.0 m are radiating in phase with a wavelength of 0.25 m. If a detector moves in a large circle around their midpoint, at how many points will the detector show a maximum signal ?
- 10
- 16
- 8
- 32
The correct answer is: 32
Related Questions to study
Physics-
Two coherent narrow slits emitting light of wavelength 
in the same phase are placed parallel to each other at a small separation of 
. The light is collected on a screen S which is placed at a distance 
from the slit 
as shown in figure. Find the finite distance x such that the intensity of P is equal to intensity at O.
Two coherent narrow slits emitting light of wavelength in the same phase are placed parallel to each other at a small separation of . The light is collected on a screen S which is placed at a distance from the slit as shown in figure. Find the finite distance x such that the intensity of P is equal to intensity at O.
Physics-General
Physics-
Consider the arrangement shown in figure. By some mechanism, the separation between the slits 
and 
can be changed. The intensity is measured at the point P which is at the common perpendicular bisector of 
and 
. When 
, the intensity measured at P is I. Find this intensity when z is equal to
1) 
,
2) 
, and
3) 
.
Consider the arrangement shown in figure. By some mechanism, the separation between the slits and can be changed. The intensity is measured at the point P which is at the common perpendicular bisector of and . When , the intensity measured at P is I. Find this intensity when z is equal to
1) ,
2) , and
3) .
Physics-General
Maths-
Maths-General
Physics-
In Young's double slit experiment and 
are two slits. Films of thicknesses 
and 
and refractive indices 
and 
are placed in front of and respectively. If 
, then the central maximum will :
In Young's double slit experiment and are two slits. Films of thicknesses and and refractive indices and are placed in front of and respectively. If , then the central maximum will :
Physics-General
Physics-
Two coherent sources are placed 0.9 mm apart and the fringes are observed one metre away. The wavelength of monochromatic light used if it produces the second dark fringes at a distance of 10 mm
Two coherent sources are placed 0.9 mm apart and the fringes are observed one metre away. The wavelength of monochromatic light used if it produces the second dark fringes at a distance of 10 mm
Physics-General
Physics-
Two coherent monochromatic light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are
Two coherent monochromatic light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are
Physics-General
Physics-
Bright colours exhibited by spider's web, exposed to sunlight are due to
Bright colours exhibited by spider's web, exposed to sunlight are due to
Physics-General
Physics-
Two light beams produce interference pattern to give maxima and minima on the screen. If the intensities of the light beams are in the ratio of 9:4, then the ratio of intensities of maxima and minima is
Two light beams produce interference pattern to give maxima and minima on the screen. If the intensities of the light beams are in the ratio of 9:4, then the ratio of intensities of maxima and minima is
Physics-General
Physics-
The axes of the polariser and analyser are inclined to each other at 60° If the amplitude of polarised light emergent through analyzer is A The amplitude of unpolarised light incident on polariser is
The axes of the polariser and analyser are inclined to each other at 60° If the amplitude of polarised light emergent through analyzer is A The amplitude of unpolarised light incident on polariser is
Physics-General
Chemistry-
In 
ion central metal ion has d-electrons equal to
In ion central metal ion has d-electrons equal to
Chemistry-General
Chemistry-
On heating NaCl + K2Cr2O7 + H2SO4 conc., the gas that comes out is
On heating NaCl + K2Cr2O7 + H2SO4 conc., the gas that comes out is
Chemistry-General
Chemistry-
Chemistry-General
Chemistry-
Chemistry-General
Chemistry-
Chemistry-General
Chemistry-
Chemistry-General
