Question
Planckās constant has dimensions equivalent to which
of the following?Solution
Planckās constant (denoted as h) has the dimensions of energy Ć time, which can also be written as: Energy = [MLĀ²Tā»Ā²] Time = [T] So, h = [MLĀ²Tā»Ā¹] Now, let's compare with the dimensions of other physical quantities: Torque = Force Ć distance = [MLTā»Ā²] [L] = [MLĀ²Tā»Ā²] Linear impulse = Force Ć time = [MLTā»Ā²] [T] = [MLTā»Ā¹] Angular momentum = Moment of inertia Ć angular velocity = [MLĀ²] [Tā»Ā¹] = [MLĀ²Tā»Ā¹] Force Ć distanceĀ² = [MLTā»Ā²] [LĀ²] = [MLĀ³Tā»Ā²] Clearly, only angular momentum has the same dimensions as Planckās constant.
- In the question given below, there is a sentence of which some parts have been jumbled. Rearrange these parts, which are labeled as P, Q, R, and S, to prod...
Puri became the first city in India where people can __________ high quality drinking water __________ from the tap on 24-hour basis.
India must choose what ______________ its energy mix.
I. Will consist of
II. Will make
III. Will comprise
The century-old Cauvery water _________ between Tamil Nadu and Karnataka could see a final settlement with the Supreme Court.
After years of hard work and dedication, he achieved _________ success in his chosen field.
I opened the bag and packed the boots in; and then, just as I was ______ to close it, a horrible idea ________ to me.
Ā
1) built
2) said
3) issued
4) made
5) nurtured
I will be at the park ______ 6 o clock.
It is important to understand just how ________ is the state of Indiaās environment.
The scientists believe that their breakthrough could ______ the future of renewable energy.
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