Table of Contents
Ans. (d) All of these
Explanation:
All alpha, beta, gamma (γ) particles can be stopped by a lead box. Whereas, Alpha (a) and Beta (a) particles can easily be stopped by a paper and an aluminium sheet, respectively. But gamma rays are more penetrating and can be stopped only by lead box.
Ans. (a) Helium
Explanation:
Emission of alpha (α ) particle is alternatively referred as the emission of helium. Both alpha (α ) particle and helium has mass number of 4 and atomic number of 2.
Explanation:
Yes, radio isotopes can be prepared artificially by nuclear transmutation.Radioisotopes, also known as radioactive isotopes, are isotopes of an element that have unstable nuclei and emit radiation as they decay to more stable forms. Each radioisotope has a unique half-life, which is the time it takes for half of the substance to decay.
Explanation:
The number of protons in the nucleus is known as the atomic number of the element and is denoted by Z.The atomic number, often denoted asZ, is a fundamental property of an atom that defines its chemical identity.
Explanation:
When an element emits out a beta particle, a new element is formed with properties similar to those of an element one place later in the periodic table.
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Download NowChapter No. | Chapter Name |
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Chapter 1 | Force Work Power and Energy |
Chapter 2 | Simple Machines |
Chapter 3 | Refraction of Light |
Chapter 4 | Refraction Through Lenses |
Chapter 5 | Spectrum |
Chapter 6 | Sound |
Chapter 7 | Electricity |
Chapter 8 | Electrical Power and Household Circuits |
Chapter 11 | Magnetic Effect of Current |
Chapter 12 | Specific Heat Capacity and Latent Heat |
Chapter 13 | Radioactivity and Nuclear Energy |
Chapter Wise Important Questions for ICSE Board Class 10 Physics |
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Force Work Power and Energy |
Simple Machines |
Refraction of Light |
Refraction Through Lenses |
Spectrum |
Sound |
Electricity |
Electrical Power and Household Circuits |
Magnetic Effect of Current |
Specific Heat Capacity and Latent Heat |
Radioactivity and Nuclear Energy |
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