Coherent Sources of Light and interference of Light Constructive, Distractive
WAVE OPTICS

283164 A thin sheet of glass \((\mu=1.5)\) of thickness 6 micron introduced in the path of one of the interfering beams in a double slit experiments shifts the central fringe to a position previously occupied by fifth bright fringe. Then the wavelength of light used is

1 \(6000 \AA\)
2 \(3000 \AA\)
3 \(4500 \AA\)
4 \(7500 \AA\)
WAVE OPTICS

283191 In Young's double-slit experiment, if yellow light is replaced by blue light, the interference fringes becomes :

1 darker
2 brighter
3 wider
4 narrower
WAVE OPTICS

283197 In young's double slit experiment, interference is produced due to slits distance d meter, a part. The fringe pattern is observed in a screen distant \(D\) metre from the slit, if \(\lambda\) in meter denotes the wavelength of light, the number of fringes per meter of the screen is

1 \(\frac{d}{\lambda D}\)
2 \(\frac{D}{\lambda d}\)
3 \(\frac{\lambda \mathrm{d}}{\mathrm{D}}\)
4 \(\frac{\lambda \mathrm{D}}{2 \mathrm{~d}}\)
WAVE OPTICS

283202 The activity of a radioactive sample is \(1.6 \mathrm{Ci}\), and its half-life is \(\mathbf{2 . 5}\) days. Its activity after \(\mathbf{1 0}\) days will be

1 \(0.8 \mathrm{Ci}\)
2 \(0.4 \mathrm{Ci}\)
3 \(0.1 \mathrm{Ci}\)
4 \(0.16 \mathrm{Ci}\)
WAVE OPTICS

283204 In an ideal double-slit experiment, when a glass-plate \((\mu=1.5)\) of thickness \(t\) is introduced in the path of one of the interfering beams (wavelength \(\lambda\) ), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass-plate is

1 \(\lambda\)
2 \(\frac{\lambda}{3}\)
3 \(\frac{2 \lambda}{3}\)
4 \(2 \lambda\)
WAVE OPTICS

283164 A thin sheet of glass \((\mu=1.5)\) of thickness 6 micron introduced in the path of one of the interfering beams in a double slit experiments shifts the central fringe to a position previously occupied by fifth bright fringe. Then the wavelength of light used is

1 \(6000 \AA\)
2 \(3000 \AA\)
3 \(4500 \AA\)
4 \(7500 \AA\)
WAVE OPTICS

283191 In Young's double-slit experiment, if yellow light is replaced by blue light, the interference fringes becomes :

1 darker
2 brighter
3 wider
4 narrower
WAVE OPTICS

283197 In young's double slit experiment, interference is produced due to slits distance d meter, a part. The fringe pattern is observed in a screen distant \(D\) metre from the slit, if \(\lambda\) in meter denotes the wavelength of light, the number of fringes per meter of the screen is

1 \(\frac{d}{\lambda D}\)
2 \(\frac{D}{\lambda d}\)
3 \(\frac{\lambda \mathrm{d}}{\mathrm{D}}\)
4 \(\frac{\lambda \mathrm{D}}{2 \mathrm{~d}}\)
WAVE OPTICS

283202 The activity of a radioactive sample is \(1.6 \mathrm{Ci}\), and its half-life is \(\mathbf{2 . 5}\) days. Its activity after \(\mathbf{1 0}\) days will be

1 \(0.8 \mathrm{Ci}\)
2 \(0.4 \mathrm{Ci}\)
3 \(0.1 \mathrm{Ci}\)
4 \(0.16 \mathrm{Ci}\)
WAVE OPTICS

283204 In an ideal double-slit experiment, when a glass-plate \((\mu=1.5)\) of thickness \(t\) is introduced in the path of one of the interfering beams (wavelength \(\lambda\) ), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass-plate is

1 \(\lambda\)
2 \(\frac{\lambda}{3}\)
3 \(\frac{2 \lambda}{3}\)
4 \(2 \lambda\)
WAVE OPTICS

283164 A thin sheet of glass \((\mu=1.5)\) of thickness 6 micron introduced in the path of one of the interfering beams in a double slit experiments shifts the central fringe to a position previously occupied by fifth bright fringe. Then the wavelength of light used is

1 \(6000 \AA\)
2 \(3000 \AA\)
3 \(4500 \AA\)
4 \(7500 \AA\)
WAVE OPTICS

283191 In Young's double-slit experiment, if yellow light is replaced by blue light, the interference fringes becomes :

1 darker
2 brighter
3 wider
4 narrower
WAVE OPTICS

283197 In young's double slit experiment, interference is produced due to slits distance d meter, a part. The fringe pattern is observed in a screen distant \(D\) metre from the slit, if \(\lambda\) in meter denotes the wavelength of light, the number of fringes per meter of the screen is

1 \(\frac{d}{\lambda D}\)
2 \(\frac{D}{\lambda d}\)
3 \(\frac{\lambda \mathrm{d}}{\mathrm{D}}\)
4 \(\frac{\lambda \mathrm{D}}{2 \mathrm{~d}}\)
WAVE OPTICS

283202 The activity of a radioactive sample is \(1.6 \mathrm{Ci}\), and its half-life is \(\mathbf{2 . 5}\) days. Its activity after \(\mathbf{1 0}\) days will be

1 \(0.8 \mathrm{Ci}\)
2 \(0.4 \mathrm{Ci}\)
3 \(0.1 \mathrm{Ci}\)
4 \(0.16 \mathrm{Ci}\)
WAVE OPTICS

283204 In an ideal double-slit experiment, when a glass-plate \((\mu=1.5)\) of thickness \(t\) is introduced in the path of one of the interfering beams (wavelength \(\lambda\) ), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass-plate is

1 \(\lambda\)
2 \(\frac{\lambda}{3}\)
3 \(\frac{2 \lambda}{3}\)
4 \(2 \lambda\)
WAVE OPTICS

283164 A thin sheet of glass \((\mu=1.5)\) of thickness 6 micron introduced in the path of one of the interfering beams in a double slit experiments shifts the central fringe to a position previously occupied by fifth bright fringe. Then the wavelength of light used is

1 \(6000 \AA\)
2 \(3000 \AA\)
3 \(4500 \AA\)
4 \(7500 \AA\)
WAVE OPTICS

283191 In Young's double-slit experiment, if yellow light is replaced by blue light, the interference fringes becomes :

1 darker
2 brighter
3 wider
4 narrower
WAVE OPTICS

283197 In young's double slit experiment, interference is produced due to slits distance d meter, a part. The fringe pattern is observed in a screen distant \(D\) metre from the slit, if \(\lambda\) in meter denotes the wavelength of light, the number of fringes per meter of the screen is

1 \(\frac{d}{\lambda D}\)
2 \(\frac{D}{\lambda d}\)
3 \(\frac{\lambda \mathrm{d}}{\mathrm{D}}\)
4 \(\frac{\lambda \mathrm{D}}{2 \mathrm{~d}}\)
WAVE OPTICS

283202 The activity of a radioactive sample is \(1.6 \mathrm{Ci}\), and its half-life is \(\mathbf{2 . 5}\) days. Its activity after \(\mathbf{1 0}\) days will be

1 \(0.8 \mathrm{Ci}\)
2 \(0.4 \mathrm{Ci}\)
3 \(0.1 \mathrm{Ci}\)
4 \(0.16 \mathrm{Ci}\)
WAVE OPTICS

283204 In an ideal double-slit experiment, when a glass-plate \((\mu=1.5)\) of thickness \(t\) is introduced in the path of one of the interfering beams (wavelength \(\lambda\) ), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass-plate is

1 \(\lambda\)
2 \(\frac{\lambda}{3}\)
3 \(\frac{2 \lambda}{3}\)
4 \(2 \lambda\)
WAVE OPTICS

283164 A thin sheet of glass \((\mu=1.5)\) of thickness 6 micron introduced in the path of one of the interfering beams in a double slit experiments shifts the central fringe to a position previously occupied by fifth bright fringe. Then the wavelength of light used is

1 \(6000 \AA\)
2 \(3000 \AA\)
3 \(4500 \AA\)
4 \(7500 \AA\)
WAVE OPTICS

283191 In Young's double-slit experiment, if yellow light is replaced by blue light, the interference fringes becomes :

1 darker
2 brighter
3 wider
4 narrower
WAVE OPTICS

283197 In young's double slit experiment, interference is produced due to slits distance d meter, a part. The fringe pattern is observed in a screen distant \(D\) metre from the slit, if \(\lambda\) in meter denotes the wavelength of light, the number of fringes per meter of the screen is

1 \(\frac{d}{\lambda D}\)
2 \(\frac{D}{\lambda d}\)
3 \(\frac{\lambda \mathrm{d}}{\mathrm{D}}\)
4 \(\frac{\lambda \mathrm{D}}{2 \mathrm{~d}}\)
WAVE OPTICS

283202 The activity of a radioactive sample is \(1.6 \mathrm{Ci}\), and its half-life is \(\mathbf{2 . 5}\) days. Its activity after \(\mathbf{1 0}\) days will be

1 \(0.8 \mathrm{Ci}\)
2 \(0.4 \mathrm{Ci}\)
3 \(0.1 \mathrm{Ci}\)
4 \(0.16 \mathrm{Ci}\)
WAVE OPTICS

283204 In an ideal double-slit experiment, when a glass-plate \((\mu=1.5)\) of thickness \(t\) is introduced in the path of one of the interfering beams (wavelength \(\lambda\) ), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass-plate is

1 \(\lambda\)
2 \(\frac{\lambda}{3}\)
3 \(\frac{2 \lambda}{3}\)
4 \(2 \lambda\)