A complete transparent object is invisib...

A complete transparent object is invisible ir free space, then what is its refractive index ?

One

More than one

Less than one

1.33

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

RAY OPTICS AND OPTICAL INSTRUMENTS
KUMAR PRAKASHAN|Exercise SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)(TOTAL INTERNAL REFLECTION)|14 Videos
RAY OPTICS AND OPTICAL INSTRUMENTS
KUMAR PRAKASHAN|Exercise SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)(REFRACTION, MAGNIFICATION, POWER AND COMBINATION OF LENS)|29 Videos
RAY OPTICS AND OPTICAL INSTRUMENTS
KUMAR PRAKASHAN|Exercise SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)|26 Videos
MOVING CHARGES AND MAGNETISM
KUMAR PRAKASHAN|Exercise SECTION D (MCQs ASKED IN COMPETITIVE EXAMS)|34 Videos
SAMPLE QUESTION PAPER
KUMAR PRAKASHAN|Exercise PART-B SECTION-C|5 Videos

Similar Questions

Explore conceptually related problems

What is the unit of refractive index?

As shown in figure, a ray of light is incident on glass cube. If it experiences total internal reflection in vertical plane, then what is the refractive index of glass?

Frequency and wavelength of light in transparent material are 2xx10^(14) Hz and 5000 Å respectively, then its refractive index is

Obtain the relative between object distance and image distance in terms of refractive index of medium and radius of curvature for spherically curved surface.

Flint glass lens is made of refractive index 1.5. When it is placed in a liquid of refractive index 1.25, then its focal length will be ....

A light ray is incident on air-liquid interface at 45^@ and is refracted at 30^@. What is the refractive index of the liquud? For what angle of incidence will the angle between reflected ray and refracted ray be 90^@? (AS_(7))

A point object is placed at the centre of a glass sphere of radius 6cm and refractive index 1.5. The distance of virtual image from the surface is

(i) If f = + 0.5 m , what is the power of the lens ? (ii) The radii of curvature of the faces of a double convex lens are 9 cm and 15 cm . Its focal length is 12 cm . What is the refractive index of glass ?

Figure shows an equiconvex lens (of refractive index 1.50) in contact with a liquid layer on top of a plane mirror. A small needle with its tip on the principal axis is moved along the axis until its inverted image is found at the position of the needle. The distance of the needle from the lens is measured to be 45.0 cm. The liquid is removed and the experiment is repeated. The new distance is measured to be 30.0 cm. What is the refractive index of the liquid ?

Assertion:- Different colours of light have same velocity in vaccum, but they have differnet velocites in any other transparent medium. Reason:- For different colours, refractive index of transparent medium has different values.

KUMAR PRAKASHAN-RAY OPTICS AND OPTICAL INSTRUMENTS-SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)(REFRACTION)

Green light of wavelength 5460 Å is incident on an air and glass inter...
Text Solution
|
Velocity of light in diamond, glass and water decreases in the followi...
Text Solution
|
The refractive indices of water and glass are 1.2 and 1.5 respectively...
Text Solution
|
A sound wave travels from air to water. The angle of incidence is alph...
Text Solution
|
A complete transparent object is invisible ir free space, then what is...
Text Solution
|
Refractive index of diamond is 2. Speed of ligh in it is ...... Cm//s.
Text Solution
|
A ray of light having intensity 0.5 (W)/(m^2) is incident perpendicula...
Text Solution
|
A ray of light is incident on liquid surface such that reflected and r...
Text Solution
|
Light ray travels from air to glass and air to water, as shown in figu...
Text Solution
|
An observer stand on the bank of lake finds fish at the depth 12 cm in...
Text Solution
|
A water tank is partially fill upto 2 m height. As shown in figure, 0....
Text Solution
|
A glass slab having refractive index n and thickness d is placed on th...
Text Solution
|
A mark at the bottom of a liquid beaker appears to rise by 0.1 m. If t...
Text Solution
|
A swimmer is diving in a swimming pool vertically down with a velocity...
Text Solution
|
A ray of light enters in air from glass. What wi be deviation angle if...
Text Solution
|
When an object in rarer medium is viewed from denser medium, then that...
Text Solution
|
A vessel of depth d is half filled with liquid of refractive index mu1...
Text Solution
|
A narrow beam of light is incident on a glass plate of refractive inde...
Text Solution
|
A bird views a fish at 3 m depth in water. Real depth of fish is ........
Text Solution
|
An object viewed by a person in water is at 3 m height in air, then re...
Text Solution
|