Please explain me the the confusion about the marked step...
why a+bcoso=Rcos0(theta) at the same time bsin0(theta)= Rsin0(theta)
what is the logic for the cosideration...
Asked by nitishkrnehu09
| 9th Oct, 2017,
07:26: PM
Expert Answer:
- This type of substitutions is done for simplification in solving.
- Step 15 being converted into a standard form of trigonometric formula " sinAcosB + cosAsinB = sin(A+B) "
- Here " sinA = sinωt " and " cosB = cosωt "
- but there is no simplied term for sinB and cosA. "R" is taken into consideration for the resultant amplitude from "a" and "b"
- Hence, in step 16 there is substitution for " a+bcosΦ = Rcosθ " for sinA and " bsinΦ = Rsinθ " for cosB making the right hand side of step 15 in the form of sinAcosB + cosAsinB
Answered by Abhijeet Mishra
| 8th Dec, 2017,
06:11: PM
Concept Videos
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- What is an electromagnetic wave?
- State the properties of Electromagnetic Waves.
- Which scientist
a. Predicted the presence of electromagnetic waves
b. Experimentally demonstrated the existence of electromagnetic waves
- Calculate the time period of visible light for which the human eye is most sensitive.
- Explain the Hertz experiment to generate the electromagnetic wave.
- Suppose a plane electromagnetic wave is travelling in x direction. What is a. The direction of the electric and magnetic field vectors b. The ratio of magnitudes
Asked by nitishkrnehu09
| 9th Oct, 2017,
07:26: PM
Expert Answer:
- This type of substitutions is done for simplification in solving.
- Step 15 being converted into a standard form of trigonometric formula " sinAcosB + cosAsinB = sin(A+B) "
- Here " sinA = sinωt " and " cosB = cosωt "
- but there is no simplied term for sinB and cosA. "R" is taken into consideration for the resultant amplitude from "a" and "b"
- Hence, in step 16 there is substitution for " a+bcosΦ = Rcosθ " for sinA and " bsinΦ = Rsinθ " for cosB making the right hand side of step 15 in the form of sinAcosB + cosAsinB
- This type of substitutions is done for simplification in solving.
- Step 15 being converted into a standard form of trigonometric formula " sinAcosB + cosAsinB = sin(A+B) "
- Here " sinA = sinωt " and " cosB = cosωt "
- but there is no simplied term for sinB and cosA. "R" is taken into consideration for the resultant amplitude from "a" and "b"
- Hence, in step 16 there is substitution for " a+bcosΦ = Rcosθ " for sinA and " bsinΦ = Rsinθ " for cosB making the right hand side of step 15 in the form of sinAcosB + cosAsinB
Answered by Abhijeet Mishra
| 8th Dec, 2017,
06:11: PM
Concept Videos
- pls explain
- Why light can travel in vacuum where as sound can not do so
- What is polarisation
- how are frequency and intencity of electromagnetic wave related?
- What is an electromagnetic wave?
- State the properties of Electromagnetic Waves.
- Which scientist a. Predicted the presence of electromagnetic waves b. Experimentally demonstrated the existence of electromagnetic waves
- Calculate the time period of visible light for which the human eye is most sensitive.
- Explain the Hertz experiment to generate the electromagnetic wave.
- Suppose a plane electromagnetic wave is travelling in x direction. What is a. The direction of the electric and magnetic field vectors b. The ratio of magnitudes
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