Question
Why is there no dispersion in the light refracted through a rectangular glass slab?
✓
Answer
It can be considered to be equivalent to two prisms in reverse way. In the case of a rectangular glass slab the rays of all colours combine together in the reverse prism. Hence, there is no dispersion.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A rectangular loop and a circular loop are moving out of a uniform magnetic field with a constant velocity $v$ as shown in the figure :
Magnetic field is perpendicular to the plane of loops. Explain in which loop, the magnitude of induced emf will remain constant while emerging out of magnetic field?
→Magnetic field is perpendicular to the plane of loops. Explain in which loop, the magnitude of induced emf will remain constant while emerging out of magnetic field?
Write the formula for the potential energy of a dipole in an electric field and find its minimum and maximum values.
An open organ pipe has a length of 5cm.
- Find the fundamental frequency of vibration of this pipe.
- What is the highest harmonic of such a tube that is in the audible range? Speed of sound in air is 340m/s and the audible range is 20-20,000Hz.
Discuss the motion of a charged particle in a uniform magnetic field with initial velocity perpendicular to the magnetic field.
###
Explain the principle of cyclotron.
###
Explain the principle of cyclotron.
A spherical shell is heated. The volume change according to the equation $\text{V}_\theta=\text{V}_\theta(1+\gamma\theta)$. Does the volume refer to the volume enclosed by the shell or the volume of the material making up the shell?
→A light ray is refracted from medium (1) to medium (2). Their refractive indices are n1 and n2, respectively and n2 < n1. Write an expression for the critical angle of incidence.
Write the definition of concave mirror and convex mirror.
Deduce the expression for the magnetic dipole moment of an electron orbiting around the central nucleus.
Draw the nature of the graph of binding energy per nucleon against atomic mass number and explain its notable points.
A solenoid of length $0.5 m$ has a radius of $1 cm$ and is made up of 500 turns. It carries a current of $5 A$. What is the magnitude of the magnetic field inside the solenoid?
→