One Fermi is equal to 10⁻¹⁵ metre. The radius of a proton is 1.3 Fermis. Write the radius of a proton in metres in standard form.

Solution:

Given, one Fermi is equal to to 10⁻¹⁵ metre.

The radius of a proton is 1.3 Fermis.

We have to write the radius of a proton in metres in standard form.

Any number can be expressed as decimal numbers between 1 and 10 multiplied by a power of 10. This form of representation is termed as the standard form.

According to the question,

Radius of proton = 1.3 × 10⁻¹⁵ m

Therefore, the required standard form is 1.3 × 10⁻¹⁵ m.

✦ Try This: One Fermi is equal to 10⁻¹⁵ metre. The radius of a proton is 2.11 Fermis. Write the radius of a proton in metres in standard form.

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 12

NCERT Exemplar Class 8 Maths Chapter 8 Problem 141

One Fermi is equal to 10⁻¹⁵ metre. The radius of a proton is 1.3 Fermis. Write the radius of a proton in metres in standard form.

Summary:

One Fermi is equal to 10⁻¹⁵ metre. The radius of a proton is 1.3 Fermis. The radius of a proton in metres in standard form is 1.3 × 10⁻¹⁵ m.

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