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The given equation of wave is Y=0.3sin(2t-0.5x)......(1) We have equation of wave Y=asin(wt-kx)........ (2) Comparing eqn 1 and 2 we get, Amplitude(a) = 0.3 cm Angular frequency (w) = 2 rad/s Angular wave number (k) = 0.5 rad/cm Now, k=2pi/wavelength or, wavelength = 2pi/k = 2pi/0.5 =4 pi cm Again,Read more
नेपाल हिमालको टोपी, पहाडको पछ्यौरी र तराईको पाउजु लगाएर बसेको एक सुन्दर मुलुक हो। संसारको सर्वोच्च शिखर सगरमाथादेखि लिएर हरेक हिमालका चुचुराबाट नदिनालाहरू पहाडमा नागबेलीजस्तै बगेर तराईका फाँटसम्म पुग्छन्। त्यसैले त्यहाँका माटो मलिलो हुन्छ जसका कारण तराईमा नेपाली जनतालाई पुग्न सक्ने ८०% अन्न उत्पादनRead more
Role of education in national development Despite few progress in past decades, children are denied education. We must understand that education and development go hand in hand. The role of education in Nepal is a very important one as if it lacks our country will suffer from poverty and slow economRead more
A person suffering from anaemia has deficiency of red blood cells, or haemoglobin in his/her blood. So, adequate amount of oxygen cannot be supplied to the body to release energy. As a result, a person suffering from anaemia feels tired after walking for a short period.
The difference between acceleration due to gravity and gravitational field intensity is given below. Acceleration due to gravity is the acceleration produced on a freely falling object due to the force of gravity whereas Gravitational field intensity is the force on a unit mass at a point in a fieldRead more
The answer is 20. Solution: Let the total no. of staffs=x Then, the total salary of all staffs=Rs. 20,000x Given, Number of lab assistants=10 Then, total salary of 10 lab assistants becomes=10×25,000=Rs.2,50,000 It means, salary of remaining staffs= Rs. 20,000x-Rs.2,50,000.......eqn(i) According toRead more
Education, communicable have all five vowel letters.
If I were running a race and i passed the person in second place, i would be in 2nd place. To be in 1st place i should have to pass the person in 1st place of the race.
We have given, Mass of the earth (M) = 6×10^24 kg Radius of the earth (R) =6400 km = 6×10^6 m Height (h) = 3600 km =3.6×10^6 m Total distance from the center of Earth (R+h) = 6400000+3600000 =10000000=10^7 m Acceleration due to gravity (g) =? We know, g= GM/(R+h) ^2 =(6. 67×10^-11 ×6×10^24) / (10^7)Read more
The total number of handshakes is 105. Solution: We have given, Total number of people(n) = 15 And we know that two people are required to do handshake. And once they do they wont do again. So the required formula is n(n-1)/2 =15(15-1)/2 =(15×14)/2 =210/2 =105 Hence, the total number of handshakes iRead more