The mass of an electron is ` 9. 1 xx 10^(-31) kg`. If its K.E. is `3. 0 xx 10 ^(25) J`. Calculate its wavelength .

Explanation

To calculate the wavelength of an electron given its mass and kinetic energy, we can follow these steps:

### Step 1: Write down the known values
- Mass of the electron (m) = \(9.1 \times 10^{-31}\) kg
- Kinetic Energy (KE) = \(3.0 \times 10^{-25}\) J

### Step 2: Use the kinetic energy formula to find the velocity
The kinetic energy (KE) of an object can be expressed as:
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