11th Science Syllabus (Bihar Board)
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What is Keyboard(keyboard क्या है )
INPUT DEVICE input device वह device है जिसका प्रयोग हम एक USER कंप्यूटर से जुड़नेके लिए करता है ये वो device है जिसकी मदद से कंप्यूटर को data या instruction देता है | हम कह सकते है कि input device वो device है जो HUMAN READABLE data को digital data में convert करता है |
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Work And Energy, Class 9 (physics)
TEXT Questions Q 1. A force of 7 N on an object. The displacement is, say 8 m, in the direction of the force as shown in figure. Let us take it that the force acts on the object through the displacement. What is the work done in this case? Solution: Q 2. When do
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Gravitation, Class-9(Physics)
TEXT Questions Q 1.State the universal law of gravitation.Solution: According to universal law of gravitation, every particle in the universe attracts every other particle with a force which is directly proportional to the product of their masses and inversely proportional to the square of distance between them. The direction of force is along the line
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