JEE Main 2016 (Online) 10th April Morning Slot | Ray & Wave Optics Question 213 | Physics

JEE Main 2016 (Online) 10th April Morning Slot

MCQ (Single Correct Answer)

-1

Two stars are 10 light years away from the earth. They are seen through a telescope of objective diameter 30 cm. The wavelength of light is 600 nm. To see the stars just resolved by the telescope, the minimum distance between them should be (1 light year = 9.46 $$ \times $$ 10¹⁵ m) of the order of :

10⁶ km

10⁸ km

10¹¹ km

10¹⁰ km

JEE Main 2016 (Online) 10th April Morning Slot

MCQ (Single Correct Answer)

-1

To determine refractive index of glass slab using a travelling microscope, minimum number of readings required are :

Two

Three

Four

Five

JEE Main 2016 (Online) 10th April Morning Slot

MCQ (Single Correct Answer)

-1

A hemispherical glass body of radius 10 cm and refractive index 1.5 is silvered on its curved surface. A small air bubble is 6 cm below the flat surface inside it along the axis. The position of the image of the air bubble made by the mirror is seen :

JEE Main 2016 (Online) 10th April Morning Slot Physics - Ray & Wave Optics Question 198 English

JEE Main 2016 (Online) 10th April Morning Slot Physics - Ray & Wave Optics Question 198 English

14 cm below flat surface

30 cm below flat surface

20 cm below flat surface

16 cm below flat surface

JEE Main 2016 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

In Young’s double slit experiment, the distance between slits and the screen is 1.0 m and monochromatic light of 600 nm is being used. A person standing near the slits is looking at the fringe pattern. When the separation between the slits is varied, the interference pattern disappears for a particular distance d₀ between the slits. If the angular resolution of the eye is $${{{1^o}} \over {60}}$$, the value of d₀ is close to :

1 mm

2 mm

4 mm

3 mm

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