Quiz Bank
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Does the sun do any work on earth?
No work is done on the earth revolving around it in a perfectly circular orbit. The earth revolves around the sun due to the gravitational force of attraction between the sun and the earth. This gravitational force provides centripetal force…
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Why is the electron volt often a more convenient unit of energy than a joule?
Both electron volt and joule are the units of energy. Since energies at the atomic level are very small and are expressed in electron volt rather than Joule because Joule is a bigger unit. Hence the unit electron volt for…
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Why are some lines in the hydrogen spectrum brighter than others?
In hydrogen spectrum,some spectral lines are brighter than others depending upon their energy level.These bright lines show that electrons have jumped from higher energy level to lower energy level.When electron jumps from some higher orbit,the energy released in the from…
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Is an electron a particle or a wave?
In 1924,de Broglie proposed that particle acts as a wave and wave acts as a particle. Davisson and Germer experimentally confirmed the wave nature of electron.They showed that electrons are diffracted from metallic crystal in the same manner as x-rays…
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Why is wave nature of matter not more apparent in our daily observations?
Since,the de-Broglie wavelength is given by the relation λ = h/mv As the value of Plank’s constant is very small,so the wavelength associated with ordinary object is so small and is difficult to observe.In our daily observations we deal with…
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Types of Insurance
We all like protection, ours, that of our family members, precious assets … for this, taking out insurance is the solution. Day by day we are exposed to suffering some damage and, as if this were not enough, we must take into…
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Best Online degrees (2021)
In case you haven’t heard, online learning is on the rise. Millions of students enroll each year as they seek a more flexible and personalized approach to learning. As a result, institutions and universities now offer various types of online programs that…
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Best ways of making money online in (2021)
In this article, I am going to reveal the 10 best ways to earn money on the Internet for its economic potential, simplicity, and ability to generate income in a stable way. And since I want to be totally transparent with…
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Conference Call Services
Market Share and Industry Growth Revenue 2021: Business Status, Regional Overview Latest Technology, Top Growing Factors and Market Dynamics Forecast to 2027 with Impact of Covid-19 The Conference Call Services market report offers great insights into major factors having a…
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10 Technological skills that will be the most in demand in (2021)
Making use of technology is no longer just another skill, it is an imperative and universal need. Some people may be more comfortable with technology than others, and that could depend on their profession. However, all today’s professionals must have…