Compare the two numbers `4.56 xx 10^8` and `3.92 xx 10^7`

Compare the following numbers: 2.7xx10^(12), 1.5xx10^8

Compare the following numbers: 4xx10^(14), 3xx10^(17)

Find : 36.8xx10

A and B are two metals with threshold frequencies 1.8 xx 10^(14) Hz and 2.2 xx 10^(14) Hz.Two identical photons of energy 0.825 eV each are incident on them.Then photoelectrons are emitted in (Take h = 6.6 xx 10^(34) Js)

Find : 153.7xx10

Find the LCM and HCF of the following pairs of integers and verify that LCM times HCF = product of the two numbers 510 and 92

In a Young’s experiment, let lights of lambda= 5.48 xx 10^-7 m and 6.85 xx 10^-8 m be used in turn keeping D and d constant. Compare the fringe widths in the two cases.