With the help of a ray diagram, explain the following terms: optical centre of a convex lens. Enable Ginger Cannot connect to Ginger Check your internet connection or reload the browser Disable in this text field Rephrase Rephrase current sentence Edit in Ginger ×

The centre of the refracting surface of the convex lens is called its optical centre. A ray of light passing through this point goes straight without any deviation from its path. The optical centre is the point of intersection of the principal axis and optical axis.

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Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 15 - Light>Exercise>Q I

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7th CBSE

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Draw a ray diagrams of convex lens when the position of the object is between $F_{1}$ and $2 F_{1}$ .

Important Questions on Light

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7th CBSE

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Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 15 - Light>Exercise>Q I

Nitika's grandmother is not able to see distant objects properly. Nitika takes her to the nearby eye specialist. Which type of lens would be suggested by a doctor for Nitika's grandmother?

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7th CBSE

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Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 15 - Light>Exercise>Q I

Nitika's grandmother is not able to see distant objects properly. Nitika takes her to the nearby eye specialist. What value can you learn from Nitika?

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7th CBSE

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Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 15 - Light>Exercise>Q J

With the help of a ray diagram, explain the following terms: focus of a convex lens

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7th CBSE

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Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 15 - Light>Exercise>Q J