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Chapter 16: Problem 2223

The power of plane glass is (A) \(\infty\) (B) 0 (C) \(\overline{2 \mathrm{D}}\) (D) \(4 \mathrm{D}\)

Short Answer

Expert verified
The power of plane glass is 0 (option B) since its parallel surfaces do not change the direction of incoming light rays, meaning it doesn't have any converging or diverging power.

Step by step solution

01

Understand Lens Power and Plane Glass Properties

Lens power is the property of a lens or optical system to converge or diverge incoming parallel rays of light. It is measured in Dioptres (D) and can be calculated using the formula: Power (P) = \(\frac{1}{f}\) where f is the focal length of the lens in meters. Plane glass has parallel surfaces which do not change the direction of incoming light rays, meaning it doesn't have any converging or diverging power.
02

Calculate the Power of Plane Glass

Since plane glass doesn't have any converging or diverging power, its focal length can be considered to be infinite. Plugging this into the power formula: Power (P) = \(\frac{1}{\infty}\)
03

Simplify the Result

Simplifying the expression: Power (P) = 0
04

Choose the Correct Option

Comparing the result with the given options, we can conclude that the correct answer is: (B) 0

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Most popular questions from this chapter

Light from two coherent Sources of the same amplitude \(\mathrm{A}\) and wavelength \(\lambda\), illuminates the Screen. The intensity of the central maximum is Io. If the sources were incoherent, the intensity at the same point will be (A) \(\left(\mathrm{I}_{0} / 2\right)\) (B) \(\left(\mathrm{I}_{0} / 4\right)\) (C) \(4 \mathrm{I}_{0}\) (D) \(2 \mathrm{I}_{0}\)

The velocity of light is maximum in a medium of (A) diamond (B) water (C) glass (D) vacuum

What is the time taken in seconds to cross a glass plate of thickness $6 \mathrm{~mm}\( and \)\mu=2.0$ by light ? (A) \(8 \times 10^{-11}\) (B) \(4 \times 10^{-11}\) (C) \(2 \times 10^{11}\) (D) \(16 \times 10^{-11}\)

For four different transparent medium $\mathrm{n}_{41} \times \mathrm{n}_{12} \times \mathrm{n}_{21}=$ (A) \(\left(1 / \mathrm{n}_{41}\right)\) (B) \(\mathrm{n}_{41}\) (C) \(\mathrm{n}_{14}\) (D) \(\left(1 / \mathrm{n}_{14}\right)\)

A sound source emits sound of \(600 \mathrm{~Hz}\) frequency, this sound enters by opened door of width \(0.75 \mathrm{~m} .\) Find the angle on one side at which first minimum is formed. The speed of sound \(=300 \mathrm{~ms}^{-1}\) (A) \(84.4^{\circ}\) (B) \(90^{\circ}\) (C) \(74.2^{\circ}\) (D) \(41.2^{\circ}\)
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