Physics-
General
Easy
Question
A monochromatic beam of light falls on YDSE apparatus at some angle (say 
) as shown in figure. A thin sheet of glass is inserted in front of the lower slit S2. The central bright fringe (path difference = 0) will be obtained
- At O
- Above O
- Below O
- Anywhere depending on angle q, thickness of plate t and refractive index of glass m
The correct answer is: Anywhere depending on angle q, thickness of plate t and refractive index of glass m
If 
central fringe is obtained at O
If 
central fringe is obtained above O and
If 
central fringe is obtained below O.
Related Questions to study
Chemistry-
Given 
The number of electrons present in l = 2 is
Given The number of electrons present in l = 2 is
Chemistry-General
Maths-
Plot A(3,-5) on a carteaion plane.
Plot A(3,-5) on a carteaion plane.
Maths-General
Maths-
If 
is a non-zero number and 
, then f(x) is:
If is a non-zero number and , then f(x) is:
Maths-General
Maths-
The integral 
equal
The integral equal
Maths-General
Maths-
If 
log
f(x) 
then 
If logf(x) then
Maths-General
Maths-
An incomplete frequency distribution is given below Median value is 46, the missing frequency is
An incomplete frequency distribution is given below Median value is 46, the missing frequency is
Maths-General
Physics-
In the adjacent diagram, CP represents a wave front and AO & BP, the corresponding two rays. Find the condition on q for constructive interference at P between the ray BP and reflected ray OP
In the adjacent diagram, CP represents a wave front and AO & BP, the corresponding two rays. Find the condition on q for constructive interference at P between the ray BP and reflected ray OP
Physics-General
Physics-
A thin slice is cut out of a glass cylinder along a plane parallel to its axis. The slice is placed on a flat glass plate as shown. The observed interference fringes from this combination shall be
A thin slice is cut out of a glass cylinder along a plane parallel to its axis. The slice is placed on a flat glass plate as shown. The observed interference fringes from this combination shall be
Physics-General
Physics-
A ray of light of intensity I is incident on a parallel glass-slab at a point A as shown in fig. It undergoes partial reflection and refraction. At each reflection 25% of incident energy is reflected. The rays AB and A'B' undergo interference. The ratio 
is
A ray of light of intensity I is incident on a parallel glass-slab at a point A as shown in fig. It undergoes partial reflection and refraction. At each reflection 25% of incident energy is reflected. The rays AB and A'B' undergo interference. The ratio is
Physics-General
Physics-
AB is incident wave front on mirror R and mirror S whereas PQ and 
is reflected wave front from mirror R and mirror S respectively. Choose the correct statement
AB is incident wave front on mirror R and mirror S whereas PQ and is reflected wave front from mirror R and mirror S respectively. Choose the correct statement
Physics-General
Physics-
In the diagram shown, the separation between the slit is equal to 
where 
is the wavelength of the light incident on the plane of the slits A thin film of thickness 
and refractive index 2 has been placed in the front of the upper slit. Assuming 
the distance of the central maxima on the screen from O is:
In the diagram shown, the separation between the slit is equal to where is the wavelength of the light incident on the plane of the slits A thin film of thickness and refractive index 2 has been placed in the front of the upper slit. Assuming the distance of the central maxima on the screen from O is:
Physics-General
Physics-
Three weight A, B and C are connected by string as shown in the figure. The system moves over a frictionless pulley. The tension in the string connecting A and B is (where g is acceleration due to gravity)
Three weight A, B and C are connected by string as shown in the figure. The system moves over a frictionless pulley. The tension in the string connecting A and B is (where g is acceleration due to gravity)
Physics-General
Physics-
As shown in the figure, two equal masses each of 2 kg are suspended from a spring balance. The reading of the spring balance will be
As shown in the figure, two equal masses each of 2 kg are suspended from a spring balance. The reading of the spring balance will be
Physics-General
Physics-
Figures I, II, III and IV depict variation of force with time
I) 
II) 
III) 
IV) 
The impulse is highest in the case of situations depicted. Figure
Figures I, II, III and IV depict variation of force with time
I)
II)
III)
IV)
The impulse is highest in the case of situations depicted. Figure
Physics-General
Physics-
The variation of momentum with time of one of the body in a two body collision is shown in fig. The instantaneous force is maximum corresponding to point
The variation of momentum with time of one of the body in a two body collision is shown in fig. The instantaneous force is maximum corresponding to point
Physics-General
