A) Marie Curie |
B) Ernest Rutherford |
C) Henri Becquerel |
D) Enrico Fermi |
C) Henri Becquerel |
1). Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? Diffusion Refraction Internal reflection
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2). One should not connect a number of electrical appliances to the same power socket because
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3). Large astronomical telescopes always use as objective
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4). Identify the vector quantity from the following
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5). Sound of frequency below 20 Hz is called
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6). RADAR is used for
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7). Materials for rain-proof coats and tents owe their water-proof properties to
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8). Point A is at a lower electrical potential than point B. An electron between them on the line joining them will
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9). On a rainy day, small oil films on water show brilliant colours. This is due to
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10). Lux is the SI unit of
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