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Physics, 22.07.2021 05:10, wcwheelsp26w7n
Trong thí nghiệm ở hình 1. 1, nếu ta thắp một nắm hương để cho khói bay lên ở phía trước đèn pin, ta sẽ nhìn thấy một vệt sáng từ đèn phát ra xuyên qua khói. Giải thích vì sao ? Biết rằng khói gồm các hạt nhỏ li ti bay lơ lửng.
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Trong thí nghiệm ở hình 1. 1, nếu ta thắp một nắm hương để cho khói bay lên ở phía trước đèn pin, ta...
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