NEET 2022 Phase 1 | Optics Question 15 | Physics

In a Young's double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nm wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would observe in the same region of the screen is

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

A light ray falls on a glass surface of refractive index $$\sqrt3$$, at an angle 60$$^\circ$$. The angle between the refracted and reflected rays would be

30$$^\circ$$

60$$^\circ$$

90$$^\circ$$

120$$^\circ$$

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

When light propagates through a material medium of relative permittivity $$\varepsilon $$_r and relative permeability $$\mu$$_r, the velocity of light, v is given by (c-velocity of light in vacuum)

v = c

$$v = \sqrt {{{{\mu _r}} \over {{\varepsilon _r}}}} $$

$$v = \sqrt {{{{\varepsilon _r}} \over {{\mu _r}}}} $$

$$v = {c \over {\sqrt {{\varepsilon _r}{\mu _r}} }}$$

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

Two transparent media A and B are separated by a plane boundary. The speed of light in those media are 1.5 $$\times$$ 10⁸ m/s and 2.0 $$\times$$ 10⁸ m/s, respectively. The critical angle for a ray of light for these two media is

sin^$$-$$1 (0.500)

sin^$$-$$1 (0.750)

tan^$$-$$1 (0.500)

tan^$$-$$1 (0.750)

PREVIOUS NEXT

NEET Subjects

Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Structure of Atom Redox Reactions Gaseous State Equilibrium Chemical Kinetics Solutions Thermodynamics Electrochemistry Nuclear Chemistry Solid State Surface Chemistry

Inorganic Chemistry

Periodic Table and Periodicity Chemical Bonding and Molecular Structure Processes of Isolation of Elements s-Block Elements Hydrogen p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry

Organic Chemistry

Some Basic Concepts of Organic Chemistry Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehydes, Ketones and Carboxylic Acids Organic Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life

Biology

Botany

Cell - The Unit of Life Biomolecules Cell Cycle and Cell Division Sexual Reproduction in Flowering Plants Microbes in Human Welfare Anatomy of Flowering Plants Transport in Plants Mineral Nutrition Respiration in Plants Biotechnology: Principles and Processes Biodiversity and Conservation The Living World Biological Classification Morphology of Flowering Plants Photosynthesis in Higher Plants Principles of Inheritance and Variation Molecular Basis of Inheritance Strategies for Enhancement in Food Production Biotechnology and It's Applications Organisms and Populations Environmental Issues Plant Kingdom Plant Growth and Development Ecosystem

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution