asked by munnakumar778207, 12 days ago

# 3.अवतल दर्पण द्वारा एक पर्दे पर मोमबत्ती की लौ का प्रतिबिम्ब प्राप्त करें। मोमबत्ती की लौ केआकार और प्रकृति का अध्ययन दर्पण से मोमबत्ती की दूरी बदलकर करें।​

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I don't have hindi keyboard but I don't

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Aim:

• To examine the character and length of the photo shaped through a concave replicate on a display screen through the usage of a candle and a display screen (for distinctive distances of the candle from the replicate).

Apparatus:

• An optical bench with 3 uprights, a concave replicate with a holder, a burning candle, and a cardboard display screen.

Theory:

• To-examine-the-nature-and-length-of-the-photo-shaped-through-a-convex-lens-on-a-display screen-through-the usage of-a-candle-and-a-display screen-for-distinctive-distances-of-the-candle-from-the-lens-3.
• Hence because the object (burning candle) is moved from infinity in the direction of the concave replicate, its photo (function of the display screen) actions from replicate consciousness in the direction of infinity. They move every different at a distance of 2f i.e., in the middle of the curvature of the replicate.
• For a candle distance much less than the focal length, the photo will become digital and does now no longer come on the display screen.

Procedure:

Find the hard focal period of the concave replicate through the standard method.

• Mount the concave replicate withinside the holder first upright and maintain it close to one quit of the optical bench, maintaining the replicate face inward.
• Mount the cardboard display screen on a 2d upright and maintain it at distance same to the hard focal period of the replicate, from the primary upright.
• Mount the burning candle withinside the 1/3 upright and maintain it close to the alternative quit of the optical bench.
• Adjust heights so that the inverted photo of the erect flame of a burning candle is shaped on the display screen. Move the display screen to make the photo sharp. The display screen may be almost at the focal point of the concave replicate.
• The photo may be actual, inverted, and lots of extra-diminished diminished.
• As the burning candle is moved closer to the replicate, the display screen needs to be moved far from it for purchasing a pointy flame photo. The inverted photo length increases.
• When the placement of the candle processes the middle curvature of the replicate, the display screen additionally processes the equal function. The photo length may be the same as the real flame length.
• Now interchange the uprights. Bring the candle upright closer to the replicate than the display screen upright.
• Move the candle similarly closer. The display screen needs to be moved away for purchasing an enlarged inverted actual photo at the display screen.

As the candle reaches the focal point of the replicate, the display screen might not be capable of getting its photo so that you can be shaped at infinity i.e. past the period of the optical bench.

#SPJ3

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