Ray & Wave Optics: JEE Mains Previous Year Questions (2021-2024) | Chapter-wise Tests for JEE Main & Advanced PDF Download

 Page 1


 
 
2024 
 
Q1 - 2024 (01 Feb Shift 1) 
The distance between object and its 3 times magnified virtual image as produced by a 
convex lens is 20cm. The focal length of the lens used is ____ cm. 
Q2 - 2024 (27 Jan Shift 1) 
If the refractive index of the material of a prism is cot 
?? 2
 , where ?? is the angle of prism 
then the angle of minimum deviation will be 
(1) ?? - 2A 
(2) 
?? 2
- 2A 
(3) ?? - A 
(4) 
?? 2
- A 
Q3 - 2024 (27 Jan Shift 1) 
A convex lens of focal length 40cm forms an image of an extended source of light on a 
photoelectric cell. A current ?? is produced. The lens is replaced by another convex lens 
having the same diameter but focal length 20cm. The photoelectric current now is : 
(1) 
1
2
 
(2) 4 I 
(3) 2 I 
(4) I 
Q4 - 2024 (27 Jan Shift 1) 
Two immiscible liquids of refractive indices 
8
5
 and 
3
2
 respectively are put in a beaker as 
shown in the figure. The height of each column is 6cm. A coin is placed at the bottom of 
the beaker. For near normal vision, theapparent depth of the coin is 
?? 4
cm. The value of ?? 
is 
Page 2


 
 
2024 
 
Q1 - 2024 (01 Feb Shift 1) 
The distance between object and its 3 times magnified virtual image as produced by a 
convex lens is 20cm. The focal length of the lens used is ____ cm. 
Q2 - 2024 (27 Jan Shift 1) 
If the refractive index of the material of a prism is cot 
?? 2
 , where ?? is the angle of prism 
then the angle of minimum deviation will be 
(1) ?? - 2A 
(2) 
?? 2
- 2A 
(3) ?? - A 
(4) 
?? 2
- A 
Q3 - 2024 (27 Jan Shift 1) 
A convex lens of focal length 40cm forms an image of an extended source of light on a 
photoelectric cell. A current ?? is produced. The lens is replaced by another convex lens 
having the same diameter but focal length 20cm. The photoelectric current now is : 
(1) 
1
2
 
(2) 4 I 
(3) 2 I 
(4) I 
Q4 - 2024 (27 Jan Shift 1) 
Two immiscible liquids of refractive indices 
8
5
 and 
3
2
 respectively are put in a beaker as 
shown in the figure. The height of each column is 6cm. A coin is placed at the bottom of 
the beaker. For near normal vision, theapparent depth of the coin is 
?? 4
cm. The value of ?? 
is 
 
Q5 - 2024 (29 Jan Shift 1) 
A convex mirror of radius of curvature 30cm forms an image that is half the size of the 
object. The object distance is : 
(1) -15cm 
(2) 45cm 
(3) -45cm 
(4) 15cm 
Q6 - 2024 (29 Jan Shift 1) 
A biconvex lens of refractive index 1.5 has a focal length of 20cm in air. Its focal length 
when immersed in a liquid of refractive index 1.6 will be: 
(1) -16cm 
(2) -160cm 
(3) +160cm 
(4) +16cm 
Q7 - 2024 (29 Jan Shift 2) 
If the distance between object and its two times magnified virtual image produced by a 
curved mirror is 15cm, the focal length of the mirror must be : 
(1) 15cm 
Page 3


 
 
2024 
 
Q1 - 2024 (01 Feb Shift 1) 
The distance between object and its 3 times magnified virtual image as produced by a 
convex lens is 20cm. The focal length of the lens used is ____ cm. 
Q2 - 2024 (27 Jan Shift 1) 
If the refractive index of the material of a prism is cot 
?? 2
 , where ?? is the angle of prism 
then the angle of minimum deviation will be 
(1) ?? - 2A 
(2) 
?? 2
- 2A 
(3) ?? - A 
(4) 
?? 2
- A 
Q3 - 2024 (27 Jan Shift 1) 
A convex lens of focal length 40cm forms an image of an extended source of light on a 
photoelectric cell. A current ?? is produced. The lens is replaced by another convex lens 
having the same diameter but focal length 20cm. The photoelectric current now is : 
(1) 
1
2
 
(2) 4 I 
(3) 2 I 
(4) I 
Q4 - 2024 (27 Jan Shift 1) 
Two immiscible liquids of refractive indices 
8
5
 and 
3
2
 respectively are put in a beaker as 
shown in the figure. The height of each column is 6cm. A coin is placed at the bottom of 
the beaker. For near normal vision, theapparent depth of the coin is 
?? 4
cm. The value of ?? 
is 
 
Q5 - 2024 (29 Jan Shift 1) 
A convex mirror of radius of curvature 30cm forms an image that is half the size of the 
object. The object distance is : 
(1) -15cm 
(2) 45cm 
(3) -45cm 
(4) 15cm 
Q6 - 2024 (29 Jan Shift 1) 
A biconvex lens of refractive index 1.5 has a focal length of 20cm in air. Its focal length 
when immersed in a liquid of refractive index 1.6 will be: 
(1) -16cm 
(2) -160cm 
(3) +160cm 
(4) +16cm 
Q7 - 2024 (29 Jan Shift 2) 
If the distance between object and its two times magnified virtual image produced by a 
curved mirror is 15cm, the focal length of the mirror must be : 
(1) 15cm 
(2) -12cm 
(3) -10cm 
(4) 10/3cm 
Q8 - 2024 (30 Jan Shift 1) 
The distance between object and its two times magnified real image as produced by a 
convex lens is 45cm. 
The focal length of the lens used is __ cm. 
Q9 - 2024 (30 Jan Shift 2) 
In an experiment to measure the focal length (f) of a convex lens, the magnitude of 
object distance (x) and the image distance (y) are measured with reference to the focal 
point of the lens. The ?? -?? plot is shown in figure. 
The focal length of the lens is __cm. 
 
Page 4


 
 
2024 
 
Q1 - 2024 (01 Feb Shift 1) 
The distance between object and its 3 times magnified virtual image as produced by a 
convex lens is 20cm. The focal length of the lens used is ____ cm. 
Q2 - 2024 (27 Jan Shift 1) 
If the refractive index of the material of a prism is cot 
?? 2
 , where ?? is the angle of prism 
then the angle of minimum deviation will be 
(1) ?? - 2A 
(2) 
?? 2
- 2A 
(3) ?? - A 
(4) 
?? 2
- A 
Q3 - 2024 (27 Jan Shift 1) 
A convex lens of focal length 40cm forms an image of an extended source of light on a 
photoelectric cell. A current ?? is produced. The lens is replaced by another convex lens 
having the same diameter but focal length 20cm. The photoelectric current now is : 
(1) 
1
2
 
(2) 4 I 
(3) 2 I 
(4) I 
Q4 - 2024 (27 Jan Shift 1) 
Two immiscible liquids of refractive indices 
8
5
 and 
3
2
 respectively are put in a beaker as 
shown in the figure. The height of each column is 6cm. A coin is placed at the bottom of 
the beaker. For near normal vision, theapparent depth of the coin is 
?? 4
cm. The value of ?? 
is 
 
Q5 - 2024 (29 Jan Shift 1) 
A convex mirror of radius of curvature 30cm forms an image that is half the size of the 
object. The object distance is : 
(1) -15cm 
(2) 45cm 
(3) -45cm 
(4) 15cm 
Q6 - 2024 (29 Jan Shift 1) 
A biconvex lens of refractive index 1.5 has a focal length of 20cm in air. Its focal length 
when immersed in a liquid of refractive index 1.6 will be: 
(1) -16cm 
(2) -160cm 
(3) +160cm 
(4) +16cm 
Q7 - 2024 (29 Jan Shift 2) 
If the distance between object and its two times magnified virtual image produced by a 
curved mirror is 15cm, the focal length of the mirror must be : 
(1) 15cm 
(2) -12cm 
(3) -10cm 
(4) 10/3cm 
Q8 - 2024 (30 Jan Shift 1) 
The distance between object and its two times magnified real image as produced by a 
convex lens is 45cm. 
The focal length of the lens used is __ cm. 
Q9 - 2024 (30 Jan Shift 2) 
In an experiment to measure the focal length (f) of a convex lens, the magnitude of 
object distance (x) and the image distance (y) are measured with reference to the focal 
point of the lens. The ?? -?? plot is shown in figure. 
The focal length of the lens is __cm. 
 
Q10 - 2024 (31 Jan Shift 1) 
The refractive index of a prism with apex angle A is cotA/2. The angle of minimum 
deviation is : 
(1) ?? m
= 180
°
- A 
(2) ?? m
= 180
°
- 3A 
(3) ?? m
= 180
°
- 4A 
(4) ?? ?? = 180
°
- 2A 
 
Q11 - 2024 (31 Jan Shift 2) 
Light from a point source in air falls on a convex curved surface of radius 20cm and 
refractive index 1.5 . If the source is located at 100cm from the convex surface, the 
image will be formed at cm from the object. 
Answer Key 
Q1 (15)  
Q2 (1)  
Q3 (4)  
Q4 (31)  
Q5 (1)  
Q6 (2)  
Q7 (3)  
Q8 (10)  
Q9 (20)  
Q10 (4)  
Q11 (200) 
Solutions 
Q1 
Page 5


 
 
2024 
 
Q1 - 2024 (01 Feb Shift 1) 
The distance between object and its 3 times magnified virtual image as produced by a 
convex lens is 20cm. The focal length of the lens used is ____ cm. 
Q2 - 2024 (27 Jan Shift 1) 
If the refractive index of the material of a prism is cot 
?? 2
 , where ?? is the angle of prism 
then the angle of minimum deviation will be 
(1) ?? - 2A 
(2) 
?? 2
- 2A 
(3) ?? - A 
(4) 
?? 2
- A 
Q3 - 2024 (27 Jan Shift 1) 
A convex lens of focal length 40cm forms an image of an extended source of light on a 
photoelectric cell. A current ?? is produced. The lens is replaced by another convex lens 
having the same diameter but focal length 20cm. The photoelectric current now is : 
(1) 
1
2
 
(2) 4 I 
(3) 2 I 
(4) I 
Q4 - 2024 (27 Jan Shift 1) 
Two immiscible liquids of refractive indices 
8
5
 and 
3
2
 respectively are put in a beaker as 
shown in the figure. The height of each column is 6cm. A coin is placed at the bottom of 
the beaker. For near normal vision, theapparent depth of the coin is 
?? 4
cm. The value of ?? 
is 
 
Q5 - 2024 (29 Jan Shift 1) 
A convex mirror of radius of curvature 30cm forms an image that is half the size of the 
object. The object distance is : 
(1) -15cm 
(2) 45cm 
(3) -45cm 
(4) 15cm 
Q6 - 2024 (29 Jan Shift 1) 
A biconvex lens of refractive index 1.5 has a focal length of 20cm in air. Its focal length 
when immersed in a liquid of refractive index 1.6 will be: 
(1) -16cm 
(2) -160cm 
(3) +160cm 
(4) +16cm 
Q7 - 2024 (29 Jan Shift 2) 
If the distance between object and its two times magnified virtual image produced by a 
curved mirror is 15cm, the focal length of the mirror must be : 
(1) 15cm 
(2) -12cm 
(3) -10cm 
(4) 10/3cm 
Q8 - 2024 (30 Jan Shift 1) 
The distance between object and its two times magnified real image as produced by a 
convex lens is 45cm. 
The focal length of the lens used is __ cm. 
Q9 - 2024 (30 Jan Shift 2) 
In an experiment to measure the focal length (f) of a convex lens, the magnitude of 
object distance (x) and the image distance (y) are measured with reference to the focal 
point of the lens. The ?? -?? plot is shown in figure. 
The focal length of the lens is __cm. 
 
Q10 - 2024 (31 Jan Shift 1) 
The refractive index of a prism with apex angle A is cotA/2. The angle of minimum 
deviation is : 
(1) ?? m
= 180
°
- A 
(2) ?? m
= 180
°
- 3A 
(3) ?? m
= 180
°
- 4A 
(4) ?? ?? = 180
°
- 2A 
 
Q11 - 2024 (31 Jan Shift 2) 
Light from a point source in air falls on a convex curved surface of radius 20cm and 
refractive index 1.5 . If the source is located at 100cm from the convex surface, the 
image will be formed at cm from the object. 
Answer Key 
Q1 (15)  
Q2 (1)  
Q3 (4)  
Q4 (31)  
Q5 (1)  
Q6 (2)  
Q7 (3)  
Q8 (10)  
Q9 (20)  
Q10 (4)  
Q11 (200) 
Solutions 
Q1 
 
?? = 3?? 
?? -?? = 20cm 
2?? = 20cm 
?? = 10cm 
1
(-30)
-
1
(-10)
=
1
?? 
?? = 15cm 
Q2 
cot
?? 2
=
sin 
?? +?? min
2
 
sin
?? 2
 
? cos
?? 2
= sin 
?? +?? min
2
  
?? +?? min
2
=
?? 2
-
?? 2
 
?? min 
= ?? - 2A 
Q3 
As amount of energy incident on cell is same so current will remain same. 
Q4 
h
upp
=
h
1
?? 1
+
h
2
?? 2
=
6
3/2
+
6
8/5
= 4 +
15
4
=
31
4
cm