A) Alpha particles |
B) Bata particles |
C) Gamma particles |
D) All have the same penetrating power |
A) Alpha particles |
1). Optic fibres are mainly used for which of the following?
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2). Which of the following are most penetrating?
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3). Old-written material, which cannot be read easily, can be read by :
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4). Mesons are found in :
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5). The dark lines in the solar spectrum are due to :
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6). Which of the following is/are examples of electromagnetic waves? 1. X-rays 2. Ultrasonics 3. B-rays 4. a-rays
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7). A moderator is used in nuclear reactors in order to :
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8). In an atomic nucleus, neutrons and protons are held together by :
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9). The wavelength of S-rays is of the order of :
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10). The correct sequence of various regions in absorption spectrum is :
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