Download App

Wave Optics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
Question

In Young's double slit experiment how many maximas can be obtained on a screen (including the central maximum) on both sides of the central fringe if λ = 2000 and d = 7000  

(a) 12

(b) 7

(c) 18       

(d) 4
✓

Answer

(b) 7

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Wave Optics→Wave Optics — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

A Young's double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen is

(a) Straight line

(b) Parabola

(c) Hyperbola

(d) Circle
→
A piece of charcoal and a piece of shining steel of the same surface area are kept for a long time in an open lawn in bright sun:
  1. The steel will absorb more heat than the charcoal.
  2. The temperature of the steel will be higher than that of the charcoal.
  3. If both are picked up by bare hands, the steel will be felt hotter than the charcoal.
  4. If the two are picked up from the lawn and kept in a cold chamber, the charcoal will lose heat at a faster rate than the steel.
→

In the figure shown, the effective capacitance between the points A and B, if  each has capacitance C, is

(a) 2C

(b)    

(c) 5C       

(d)  
→

The focal length of objective and eye lens of a microscope are 4 cm and 8 cm respectively. If the least distance of distinct vision is 24 cm and object distance is 4.5 cm from the objective lens, then the magnifying power of the microscope will be

(a) 18

(b) 32 

(c) 64 

(d) 20  
→

Light from the constellation Virgo is observed to increase in wavelength by 0.4%. With respect to Earth the constellation is

(a) Moving away with velocity 1.2 × 106 m/s

(b) Coming closer with velocity 1.2 × 106 m/s 

(c) Moving away with velocity 4 × 106 m/s

(d) Coming closer with velocity 4 × 106 m/s
→
A vector is not changed if:
  1. It is rotated through an arbitrary angle.
  2. It is multiplied by an arbitrary scalar.
  3. It is cross multiplied by a unit vector.
  4. It is slid parallel to itself.
→

An electron and a proton with equal momentum enter perpendicularly into a uniform magnetic field, then

(a) The path of proton shall be more curved than that of electron

(b) The path of proton shall be less curved than that of electron

(c) Both are equally curved

(d) Path of both will be straight line
→
Ratio between intensities of magnetic fields due to points situated on axial and non-axial positions of a small magnet at distance from it is:
→
For nuclei with A > 100:
  1. The binding energy of the nucleus decreases on an average as A increases.
  2. The binding energy per nucleon decreases on an average as A increases.
  3. If the nucleus breaks into two roughly equal parts, energy is released.
  4. If two nuclei fuse to form a bigger nucleus, energy is released.
→

An electron is accelerated through a p.d. of 45.5 volt. The velocity acquired by it is (in ms-1)

(a) 4  

(b) 4  

(c)     

(d) Zero
→