Converting nanometers to meters

  • Thread starter Thread starter iphone26
  • Start date Start date
AI Thread Summary
To convert a wavelength of 720 nanometers to meters, one must use the conversion factor that 1 meter equals 1 billion (10^9) nanometers. The correct conversion involves dividing the nanometer value by 1 billion, resulting in 720 nanometers being equal to 720 x 10^-9 meters, or 7.2 x 10^-7 meters. The initial confusion stemmed from incorrectly dividing by 1000 instead of using the proper exponent. Understanding that 1 nanometer equals 10^-9 meters is crucial for accurate conversions. Properly applying this knowledge ensures correct answers in similar problems.
iphone26
Messages
2
Reaction score
0

Homework Statement



the wavelength of a laser is 720 nanometers. convert the wavelength to meters.

Homework Equations



i am not sure of an equation that will help me.

The Attempt at a Solution



this question was on a quiz i had recently and i got it wrong. i just divided by 1000 as a complete guess.
 
Physics news on Phys.org
1 meter = 10^9 nanometers I believe
 
thank you! as i think about it now my teacher did remind me that always add 10^9 after the wavelength.
 
Its 10^-9 I believe.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

I'm not sure which units I should convert this to
Replies
8
Views
1K
Ideal Gas Law Homework: Calculating Number Density and Spacing Between Molecules
Replies
2
Views
1K
Air Pressure Conversion: Units to Meters
Replies
7
Views
1K
Finding order of diffraction given angle and wavelength
Replies
10
Views
2K
Did i do this question completely wrong? (Statics-moment)
Replies
4
Views
1K
How do I accurately calculate optical cycles in a femtosecond laser pulse?
Replies
22
Views
3K
Fluids: Concept about Fluid Pressure in a relation with Force and Area
Replies
6
Views
3K
Solving Aperture Question Homework: Diameter of Pupil
Replies
10
Views
3K
What Is the frequency of red light?
Replies
5
Views
8K
What is the Energy Ratio of Two Photons with Different Wavelengths?
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top