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Questions and Answers
What can increase the 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?
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?
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?
Which factor contributes to making an object invisible when a glass lens is immersed in a liquid?
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In the given text, what is the consequence of placing an electric dipole in a non-uniform electric field?
In the given text, what is the consequence of placing an electric dipole in a non-uniform electric field?
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What can be inferred if the net electric flux through a closed surface is zero?
What can be inferred if the net electric flux through a closed surface is zero?
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What is the main restriction mentioned in the text for solving certain questions?
What is the main restriction mentioned in the text for solving certain questions?
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If an object placed in a non-uniform field experiences both force and torque, what does this imply?
If an object placed in a non-uniform field experiences both force and torque, what does this imply?
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What is the internal resistance of a cell?
What is the internal resistance of a cell?
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According to Huygen's Principle, what is true about light refraction at a convex spherical surface?
According to Huygen's Principle, what is true about light refraction at a convex spherical surface?
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What is drift velocity in the context of electricity?
What is drift velocity in the context of electricity?
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In the context of hydrogen atom energy levels, what does the total energy expression include?
In the context of hydrogen atom energy levels, what does the total energy expression include?
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Study Notes
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.
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Description
Learn how to increase the resolving power of a telescope by adjusting specific components. Test your knowledge on factors affecting the resolution of telescopes.
