Optics

Q. In a double-slit experiment, if the distance between the slits is doubled, what happens to the fringe width?
  • A. Doubles
  • B. Halves
  • C. Remains the same
  • D. Quadruples
Q. In a double-slit experiment, if the distance between the slits is doubled, what happens to the fringe separation on the screen?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. In a double-slit experiment, if the distance between the slits is halved, what happens to the fringe separation on the screen?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. In a double-slit experiment, if the distance between the slits is increased, what happens to the number of visible fringes on the screen?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In a double-slit experiment, if the distance between the slits is increased, what happens to the interference pattern?
  • A. Fringes become wider
  • B. Fringes become narrower
  • C. Fringes disappear
  • D. Fringes remain unchanged
Q. In a double-slit experiment, if the distance to the screen is increased, what happens to the interference pattern?
  • A. Fringe width decreases
  • B. Fringe width increases
  • C. Fringe pattern disappears
  • D. Fringe spacing remains unchanged
Q. In a double-slit experiment, if the distance to the screen is increased, what happens to the fringe pattern?
  • A. Fringe width decreases
  • B. Fringe width increases
  • C. Fringe pattern disappears
  • D. Fringe pattern becomes sharper
Q. In a double-slit experiment, if the distance to the screen is increased, what happens to the fringe separation?
  • A. Fringe separation decreases
  • B. Fringe separation increases
  • C. Fringe separation remains the same
  • D. Fringe separation becomes zero
Q. In a double-slit experiment, if the intensity of light at the center of the fringe pattern is I0, what is the intensity at the first minimum?
  • A. 0
  • B. I0
  • C. I0/2
  • D. I0/4
Q. In a double-slit experiment, if the screen distance is increased, what happens to the fringe separation?
  • A. Fringe separation increases
  • B. Fringe separation decreases
  • C. Fringe separation remains the same
  • D. Fringe separation becomes zero
Q. In a double-slit experiment, if the screen is moved further away from the slits, what happens to the fringe pattern?
  • A. Fringes become wider
  • B. Fringes become narrower
  • C. Fringe intensity increases
  • D. Fringe intensity decreases
Q. In a double-slit experiment, if the screen is moved further away from the slits, what effect does this have on the fringe spacing?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In a double-slit experiment, if the wavelength of light is 600 nm and the distance between the slits is 0.5 mm, what is the fringe width if the screen is 1 m away?
  • A. 0.12 mm
  • B. 0.3 mm
  • C. 0.6 mm
  • D. 0.5 mm
Q. In a double-slit experiment, if the wavelength of light is increased, what happens to the distance between the fringes?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In a double-slit experiment, what is the effect of increasing the distance between the slits on the fringe width?
  • A. Fringe width increases
  • B. Fringe width decreases
  • C. Fringe width remains constant
  • D. Fringe width becomes zero
Q. In a Michelson interferometer, what happens to the interference pattern if one of the mirrors is moved away from the beam splitter?
  • A. Fringes move closer
  • B. Fringes move apart
  • C. Fringes disappear
  • D. No change in pattern
Q. In a Michelson interferometer, what happens to the interference pattern if one of the mirrors is moved slightly?
  • A. The pattern remains unchanged
  • B. The pattern shifts
  • C. The pattern disappears
  • D. The pattern becomes brighter
Q. In a Michelson interferometer, what happens to the interference pattern if one of the mirrors is moved?
  • A. The pattern disappears
  • B. The pattern shifts
  • C. The pattern becomes brighter
  • D. The pattern becomes dimmer
Q. In a Michelson interferometer, what happens when one of the mirrors is moved slightly?
  • A. No change in interference pattern
  • B. Fringes shift
  • C. Fringes disappear
  • D. Fringes become brighter
Q. In a Newton's rings experiment, if the radius of the ring increases, what can be inferred about the wavelength of light used?
  • A. Wavelength is increasing
  • B. Wavelength is decreasing
  • C. Wavelength remains constant
  • D. Wavelength cannot be determined
Q. In a plane mirror, if an object is placed 10 cm in front of the mirror, where will the image be formed?
  • A. 5 cm
  • B. 10 cm
  • C. 15 cm
  • D. 20 cm
Q. In a prism, if the angle of incidence is equal to the angle of emergence, what can be said about the angle of deviation?
  • A. It is zero
  • B. It is equal to the angle of incidence
  • C. It is equal to the angle of emergence
  • D. It is equal to the angle of the prism
Q. In a prism, if the angle of the prism is 60 degrees, what is the minimum angle of deviation for light passing through it?
  • A. 30 degrees
  • B. 60 degrees
  • C. 90 degrees
  • D. 45 degrees
Q. In a single-slit diffraction experiment, what happens to the width of the central maximum as the slit width decreases?
  • A. It increases
  • B. It decreases
  • C. It remains the same
  • D. It becomes zero
Q. In a single-slit diffraction pattern, how does the intensity of the central maximum compare to the first minimum?
  • A. Equal
  • B. Twice
  • C. Four times
  • D. Half
Q. In a single-slit diffraction pattern, how does the intensity of the first minimum compare to the intensity of the central maximum?
  • A. It is equal
  • B. It is half
  • C. It is zero
  • D. It is one-fourth
Q. In a single-slit diffraction pattern, how many minima are there on either side of the central maximum?
  • A. One
  • B. Two
  • C. Three
  • D. Infinite
Q. In a single-slit diffraction pattern, the width of the central maximum is 4 mm. If the slit width is halved, what will be the new width of the central maximum?
  • A. 2 mm
  • B. 4 mm
  • C. 8 mm
  • D. 16 mm
Q. In a single-slit diffraction pattern, what is the angle for the first minimum if the slit width is 0.5 mm and the wavelength of light is 600 nm?
  • A. 30°
  • B. 60°
  • C. 45°
  • D. 15°
Q. In a single-slit diffraction pattern, what is the angle for the first minimum?
  • A. sin(θ) = λ/a
  • B. sin(θ) = 2λ/a
  • C. sin(θ) = 3λ/a
  • D. sin(θ) = 0
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