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QAIPMT-2008-Ph-2265: NEET 2008 Physics - Class 11 AIPMT-2008-Ph-2265 Solution: Which two of the following five physical parameters have the…
Which two of the following five physical parameters have the same dimensions? 1. Energy density 2. Refractive index 3. Dielectric constant 4. Young's modulus 5. Magnetic field 1 and 4 1 and 5 2 and 4 3 and 5
Multiple Choice Options
- A T/3
- B T/12
- C T/8
- D T/6
Step-by-Step Verified Solution
We have x = a sin _ ( _ t + � 6 )
_ Velocity, v = d x d t = a _ cos _ ( _ t + � 6 )
Maximum velocity = a _
According to question,
a _ 2 = a _ cos _ ( _ t + � 6 )
_ cos _ ( _ t + � 6 ) = 1 2 = cos _ 60 o or cos _ � 3
_ _ t = � 3 _ � 6 _ _ t = � 6
_ 2 � T . t = � 6 _ t = T 12