Increasing Resolving Power of a Telescope

What can increase the resolving power of a telescope?

When a biconvex lens of glass with refractive index 1.47 is immersed in a liquid and behaves like a plane glass plate, what is the refractive index of the liquid?

In the variation of slopping potential with light frequency on photosensitive surfaces M1 and M2, which surface has a greater value of the work function?

Which factor contributes to making an object invisible when a glass lens is immersed in a liquid?

In the given text, what is the consequence of placing an electric dipole in a non-uniform electric field?

What can be inferred if the net electric flux through a closed surface is zero?

What is the main restriction mentioned in the text for solving certain questions?

If an object placed in a non-uniform field experiences both force and torque, what does this imply?

What is the internal resistance of a cell?

According to Huygen's Principle, what is true about light refraction at a convex spherical surface?

What is drift velocity in the context of electricity?

In the context of hydrogen atom energy levels, what does the total energy expression include?

Telescope Resolving Power

Resolving power can be increased by improving the aperture size of the telescope.
Longer wavelengths of light reduce resolving power; shorter wavelengths enhance it.

Refractive Index of Liquid

A biconvex lens behaves like a plane glass plate in a liquid with a refractive index equal to that of the lens, which is 1.47.

Work Function Comparison

The surface with a lower slope in the variation of stopping potential versus light frequency indicates a greater work function.

Invisibility of Objects

An object becomes invisible when a glass lens is immersed in a liquid with a similar refractive index, leading to no refraction at the interface.

Electric Dipole in Non-Uniform Field

An electric dipole in a non-uniform electric field experiences both translational force and rotational torque.

Net Electric Flux

A net electric flux of zero through a closed surface suggests that either there are equal numbers of positive and negative charges enclosed or no charges present at all.

Restrictions on Problem Solving

Certain problems may have restrictions regarding the applications of laws and equations, potentially due to assumptions not being met.

Implications of Force and Torque

The presence of both force and torque on an object in a non-uniform field implies that the object will not only translate but can also rotate about its center of mass.

Internal Resistance of a Cell

Internal resistance refers to the opposition within a cell that affects the flow of electric current, leading to energy loss in the form of heat.

Huygen's Principle and Light Refraction

According to Huygen’s Principle, light refracts at a convex spherical surface due to the wavefronts propagating in different mediums with varying speeds.

Drift Velocity in Electricity

Drift velocity is the average velocity that charge carriers, such as electrons, attain due to an electric field in a conductor.

Total Energy in Hydrogen Atom

Total energy expression in a hydrogen atom includes potential energy of the electron due to electrostatic attraction and kinetic energy of the electron in orbit.

Learn how to increase the resolving power of a telescope by adjusting specific components. Test your knowledge on factors affecting the resolution of telescopes.