JEE Main 2019 (Online) 12th January Morning Slot | Geometrical Optics Question 150 | Physics

What is the position and nature of image formed by lens combination shown in figure ? (f₁, f₂ are focal lengths)

JEE Main 2019 (Online) 12th January Morning Slot Physics - Geometrical Optics Question 149 English

JEE Main 2019 (Online) 12th January Morning Slot Physics - Geometrical Optics Question 149 English

$${{20} \over 3}$$ cm from point B at right, real

70 cm from point B at right ; real

40 cm from point B at right; real

70 cm from point B at left ; virtual

JEE Main 2019 (Online) 11th January Evening Slot

MCQ (Single Correct Answer)

-1

A monochromatic light is incident at a certain angle on an equilateral triangular prism and suffers minimum deviation. If the refractive index of the material of the prism is $$\sqrt 3 $$, then the angle of incidence is:

60^o

45^o

90^o

30^o

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)

-1

An object is at a distance of 20 m from a convex lens of focal length 0.3 m. The lens forms an image of the object. If the object moves away from the lens at a speed of 5 m/s, the speed and direction of the image will be :

1.16 $$ \times $$ 10^–3 m/s towards the lens

2.26 $$ \times $$ 10^–3 m/s away from the lens

3.22 × 10^–3 m/s towards the lens

0.92 $$ \times $$ 10^$$-$$3 m/s away from the lens

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)

-1

The variation of refractive index of a crown glass thin prism with wavelength of the incident light is shown. Which of the following graphs is the correct one, if D_m is the angle of minimum deviation?

JEE Main 2019 (Online) 11th January Morning Slot Physics - Geometrical Optics Question 152 English