Answer:
3.87 x 10⁻⁵
Explanation:
Given parameters
normal incidence
refraction index of grain1, n₁ = 1.757
refraction index of grain2, n₂ = 1.779
to calculate reflectivity index between the two grains of different orientation an at normal incidence, we use the relation
since the incidence is normal where R, is the index of relativity
R = 3.87 x 10⁻⁵
Answer:
15. R = R₁ + R₂ + R₃
16.
Explanation:
15. The equation for the sum of resistances arranged in series is given as follows;
(Series) = R₁ + R₂ + R₃ + ... +
Therefore, the equation for the total resistance, 'R' of 3 series resistors is given as follows;
R = R₁ + R₂ + R₃
Where;
R₁, R₂, and R₃ are the three resistances arranged in series
16. The equation for the sum of resistances arranged in parallel is given as follows;
Therefore, the total resistance, R, of two resistance arranged in parallel is given as follows;
The answer is 25 E
We know, potential energy of spring is given by (1/2)kx² where k is spring constant and x is stretched distance.
Here , x=4 cm so, U=(1/2)k*4²=8k
For, x= 4cm :-
E=(1/2)k* 4²= 8k=U.
Final potential energy will be E= U.
Answer:
IT IS SIMPLE LIKE HENRY FORD MADE THIS OPTION POSSIBLE
Explanation: