4. Explain about the errors and baises in GPS surveying

(15)
5.8. Explain about the components of GPS. (10)
b. What do you mean by DGPS, Explain. (5)
6. a.What are the different methods of Gps surveying? Explain each (15)

PART C(20X 2 = 40)
7. a. Explian the types of sensors in remote sensing (10) 0. Explain electromagnetic spectrum
in detail. (10)
8. a. Explain components of GIS (10)
b. Explain the data models in GIS with advantages and disadvantages (10)

9.a. Explain the errors in GIS (10) b.Explain about data input methods in GIS (10)