JEE Main Physics question
How many wavelengths of are there in one metre? **[UPSEAT 2000, Pb. PET 2004]**
Answer: (B)
Solution
By the 1960 definition, 1 metre was defined as 1650763.73 wavelengths of the orange-red line of krypton-86 in vacuum.
How many wavelengths of are there in one metre? **[UPSEAT 2000, Pb. PET 2004]**
By the 1960 definition, 1 metre was defined as 1650763.73 wavelengths of the orange-red line of krypton-86 in vacuum.