CBSE Class 11-science Answered
Ans 1. The parallax method is a way to measure distances by using the apparent shift of an object against a background as the observer moves. To measure the distance using the parallax method, the observer first finds the object and marks its position. The observer then moves to a different location and marks the object's new position. The distance between the two positions is then measured and used to calculate the distance to the object.
To put it simply, imagine you are standing at position A and you want to calculate the distance between you and an object at point C, as shown in the figure below.
Now, in the given case, we move to point B, which is perpendicular to point A and at distance AB from its initial position, thus we can find the distance AB and angle θ.
Using these we can calculate AC by using formula.
This is how we measure distance using parallax method.
Note: Please elaborate the second question in detail, so that we can provide the solution for the same.
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CBSE darasa la 11 Sayansi Njia ya parallax ni njia ya kupima umbali kwa kutumia mabadiliko ya dhahiri ya kitu dhidi ya mandhari wakati mtazamaji anahamia. Ili kupima umbali kwa kutumia mbinu ya parallax, mtazamaji kwanza hupata kitu hicho na kuweka alama mahali pake. Kisha mtazamaji huhamia mahali pengine na kuashiria mahali jipya pa kitu hicho. Kisha umbali kati ya nafasi hizo mbili hupimwa na kutumiwa kuhesabu umbali wa kitu hicho. Kwa mfano, fikiria wewe ni katika nafasi A na unataka kuhesabu umbali kati yako na kitu katika hatua C, kama inavyoonyeshwa katika picha hapa chini. Sasa, katika kesi iliyotolewa, sisi hoja kwa uhakika B, ambayo ni perpendicular kwa uhakika A na katika umbali AB kutoka nafasi yake ya awali, hivyo tunaweza kupata umbali AB na pembe θ. Kwa kutumia hizi tunaweza kuhesabu AC kwa kutumia formula. Hii ni jinsi sisi kupima umbali kwa kutumia njia parallax. Kumbuka: Tafadhali eleza swali la pili kwa undani, ili tuweze kutoa suluhisho kwa hilo. Vipimo vya Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango cha Kiwango.