[Solved] Identify the error in this code snippet:from scipy.constants import c, planck wavelength_nm = 700 energy = planck * c / wavelength_nm print(energy) | SciPy

SciPy - Constants and Special Functions

Identify the error in this code snippet:

from scipy.constants import c, planck
wavelength_nm = 700
energy = planck * c / wavelength_nm
print(energy)

APlanck constant is incorrectly imported

BWavelength should be converted from nanometers to meters before calculation

CSpeed of light constant is not defined

DEnergy formula is incorrect; should multiply wavelength

Step-by-Step Solution

Solution:

Step 1: Check units of wavelength
The variable wavelength_nm is in nanometers but used directly in formula expecting meters.
Step 2: Correct unit conversion
Convert nanometers to meters by multiplying by 1e-9 before using in energy calculation.
Step 3: Verify formula and imports
Imports and formula are correct; only unit mismatch causes error.
Final Answer:
Wavelength should be converted from nanometers to meters before calculation -> Option B
Quick Check:
Always convert units to SI before calculations [OK]

Quick Trick: Convert nm to m: multiply by 1e-9 before use [OK]

Common Mistakes:

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