MEDIUM
8th CBSE
IMPORTANT
Earn 100

The mass of a proton is 1.67262×10-27 kg and the mass of an electron is 9.10938×10-31 kg. Show that the mass of a proton is nearly 2000 times the mass of an electron.

Important Questions on Exponents and Powers

EASY
8th CBSE
IMPORTANT
On simplifying  319÷314×33 we get 3k, find the value of k.
EASY
8th CBSE
IMPORTANT
On simplifying 25×53×x8102 × x5 we get kx3, find the value of k.
EASY
8th CBSE
IMPORTANT

Find the number from the expanded form.

7×105+4×104+0×103+2×102+6×101+9×100

EASY
8th CBSE
IMPORTANT
The speed of light in vacuum is 30,00,00,000 m/s. This number in standard form is 3×10k, find the value of k
EASY
8th CBSE
IMPORTANT
A negative rational number raised to the power zero equals _____.
EASY
8th CBSE
IMPORTANT

3-3 expressed as a rational number _____.