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What are light emitting diodes?

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A LED is a forward biased P-N junction diode which emits visible light when energized.

A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness.

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Reverse breakdown in PN Junction

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When a PN junction is reversed biased it allows very small current to flow through it. This current is due to the movement of minority charge carriers and it is almost independent of the voltage applied.
If reverse bias is made too high, the current through PN junction increases abruptly and the voltage at which this phenomenon occurs is called breakdown voltage .

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Integration of inverse trigonometric functions

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Integration of inverse trigonometric functions can be calculated using integration by parts ,integration by substitution .Here are the formula for it \[ \int \sin^{-1}x \, dx = x \sin^{-1}x + \sqrt{1 – x^2} + C \] \[ \int \cos^{-1}x \, dx = x \cos^{-1}x – \sqrt{1 – x^2} + C \] \[ \int \tan^{-1}x \,

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Activity 13.6 Class 10 Science

Class 10, Class 10 Science / physicscatalyst

Activity 13.6 from Chapter 13 of the NCERT Class 10 Science textbook focuses on understanding biodegradable and non-biodegradable substances. This activity encourages students to research and explore the environmental impact of different materials, particularly plastics. Activity Description Materials Needed Procedure Observations Students should note down the following information: Explanation Biodegradable substances are materials that can

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Activity 13.5 Class 10 Science

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Activity 13.5: NCERT book Science Class 10 Ever wondered what happens to waste after it’s thrown away? Activity 13.5 in the Class 10 NCERT Science book explores how different waste materials decompose, teaching us about waste management and the roles of biological and physical processes. Understanding Waste Decomposition: Activity 13.5 from Class 10 Science Materials

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Activity 13.4 Class 10 Science

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Activity 13.4: Ncert book Science class 10 Understanding Ozone Layer Depletion through Activity 13.4 This engaging activity, presented in Chapter 13 of the Class 10 NCERT Science book, aims to enhance our understanding of the chemicals responsible for the depletion of the ozone layer, the regulations to control these emissions, and the recent changes in

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Thermodynamics conceptual questions along with solutions

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These are some conceptual questions in thermodynamics along with their solutions. Hope they are helpful to you

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