in the figure a rario transmitting station operating at a frequency of 100 MHz has two identical coherent antennas. Antenna A is 124 m from point P and anternna B is 421 m from point P. what type of interference, destructive, constructive, or neither occurs in point P.
so the answer is saying it is constructive but i keep getting destructive. can someone help me out?
i know that with the given frequency we can find the wavelength.
so the speed of light/ frequency = 3E8/100E6 HZ
so the wavelength ends up being = 3.
Now we subtract 421m  124 m = 297 m.
297m / 3 = 99 and i'm saying its destructive because it is odd. someone please help me out :(
 👍
 👎
 👁
 ℹ️
 🚩
1 answer

the difference in distance to the two antennas is a WHOLE NUMBER of wavelengths
... this means that waves arrive in phase ... constructive interference 👍
 👎
 ℹ️
 🚩
scott
Answer this Question
Related Questions

physics
(a) Two microwave frequencies are authorized for use in microwave ovens: 900 and 2560 MHz. Calculate the wavelength of each. 1 cm (frequency = 900 MHz) 2 cm (frequency = 2560 MHz) (b) Which frequency would produce smaller hot spots in foods due to

Physics 11
An FM radio station transmits radio signals that have a wavelength of 3.2m. Where would you have to adjust your tuner in order to pick up its music? Note: FM waves are measured in MHZ I have no idea where to go with this... Thank you :)

physics
Your car rides on springs, so it will have a natural frequency of oscillation. (Figure 1) shows data for the amplitude of motion of a car driven at different frequencies. The car is driven at 24mph over a washboard road with bumps spaced 12 feet apart; the

Operations Management 10th edition
The three station work cell illustrated in Figure S7.7, has a product that must go through one of the two machines at station 1 (they are parallel) before proceeding to station 2. Station 1Machine ACapacity: 20 units/hr Station 2Capacity: 5 units/

Vibration and Waves
1. A girl on a playground swing makes a complete toandfro swing each 2 seconds. The frequency of swing is 1. (0.5 hertz) 2. (1hertz) (ANSWER) 3. (2 hertz) And the period is (FROM THE QUESTION BEFORE) 1. (0.5 seconds) (ANSWER) 2. (1 second) 3. (2 seconds)

science
Calculate the PRP, PRF, PD, DF, SPL, wavelength, period, and Axial Resolution if a 2 cycle pulse emitted from a 10 MHz transducer if the echo time received was 0.26 ms in soft tissue. Part II  Using the information above: 1. If the PRF decreases what

Math
The hourly operating cost of an airplane, which seats up to 405 passengers, is estimated to be $5,500. If an airline charges each passenger a fare of $100 per hour of flight, find the hourly profit P it earns operating the airplane as a function of the

English
Identify the sentence that is punctuated correctly. A. The operating costs, as he probably told you, are too high. B. The operating costs, as he probably told you are too high. C. The operating costs as he probably told you, are too high. D. The operating

Calc
How do I do this related rates problem? A plane flying horizontally at an altitude of 1 mi and a speed of 510 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 6 mi away

Statistics
Does the frequency distribution appear to have a normal distribution using a strict interpretation of the relevant criteria? Weight (g)Frequency 5.50005.54991 5.55005.59994 5.60005.64997 5.65005.699913

Math
An “A” train leaves a subway station every 10 minutes. An “B” train leaves every 12 minutes. An "C" train leaves every 15 minutes. If all trains just left the station on parallel tracks, when will they arrive at the station together again?

math
A power station is one side of the river that is one half kilometer wide. A factory is 5 kilometers downstream on the other side of the river. It costs Php 100.00 per meter to run the power lines on the land and Php 150.00 per meter to run underwater.

Math
You’re involved in the design of a new facility. It is important for people to move between work stations quickly. Based on the figure below, how many feet would a person need to walk to get from Work Station 1 to Work Station 3? Work Station 1 5 feet

Earth Science REPOST
A seismograph station is located 2000 km from an earthquakes epicenter. Explain the order that the S and P waves will arrive at the station.

math cal
A plane flying horizontally at an altitude of 3 mi and a speed of 480 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 6 mi away from the station. (Round to the nearest

math
a radio station broadcasts at a frequency of 590,000 . What is the wavelength of the radio waves?

prealgebra
Figure B is the image of Figure A. Which description explains how Figure A was transformed to create figure B. A. Figure A was Reflected across a horizontal line of reflection to create Figure B. B. Figure A was rotated 180 ° about the point in the middle

science
A non stop bus goes from one station to another station with a speed of 54 km per hour. The same bus returns from the second station to the first station with a speed of 36 km per hour . Find the average speed of the bus for the entire journey by solved

Math
A train leaves a station and travels north at a speed of 45mph. Four hours later, a second train leaves on a parallel track and travels north at 105 mph. How far from the station will they meet? The trains will meet ________ miles away from the station

Statistics
Statistics Does the frequency distribution appear to have a normal distribution using a strict interpretation of the relevant criteria? IQ ScoreFrequency 506924 7989228 90109490 110129232 13014926 a.
Still need help?
You can ask a new question or browse existing questions.