In order to calculate the angle, we can use the formula below for a constructive interference (the interference is constructive because the fringe is bright):

Where d is the distance between the slits, m is the order of the interference and lambda is the wavelength.
So, using d = 8.25 * 10^-5, m = 2 and lambda = 4.5 * 10^-7, we have:

Therefore the correct option is the second one.
 
        
             
        
        
        
Answer:
numbers
Explanation:
Virtually all unimaginable processes can be described as the movement of certain objects. To analyze and predict the nature of the movements that result from the different kinds of interactions, some important concepts such as momentum, force and energy have been invented. If momentum, force, and energy are known and expressed in a quantitative way (that is, by numbers) it is possible to establish rules by which the resulting movements can be predicted.
 
        
             
        
        
        
Answer:

Explanation:
Let the linear charge density of the charged wire is given as

here we can use Gauss law to find the electric field at a distance r from wire
so here we will assume a Gaussian surface of cylinder shape around the wire
so we have

here we have


so we have

 
        
             
        
        
        
Explanation:
The given data is as follows.
      Concentration of caffeine = 2.97 mg/oz
      Number of oz in a can = 12 oz
Therefore, the concentration of caffeine in one can is calculated as follows.
                  =  mg
 mg
                  = 35.64 mg
                  = 
Since, it is given that lethal dose is 10.0 g. Hence, number of cans are calculated as follows.
      No. of cans = 
                          = 
                          = 280.58 
                          = 281 (approx)
Thus, we can conclude that 281 cans of soda would be lethal.