1. If, then tanθ = 1 7 sin2θ =?
A. 7 25B. 6 25C. 3 25D. 2 25
2. Which of the following involves mixing impurities with pure silicon to make p-type semiconductors?
A. PhosphorusB. AluminiumC. AntimonyD. Oxygen
3. Annual ring is created in plants-
A. For secondary growth of plantsB. For the creation of Cork cambiumC. For creating lenticelsD. For cortex growth
4. Which one is present in vinegar?
A. - 6 10% CH3CO2HB. - 6 10% C3H5OHC. - 6 10% CH3COCH3D. - 6 10% CH3CHO
5. Change the given sentence into a complex one. 'Tell me your name.'
A. Tell me what your name is.B. Tell me what your name.C. Tell me what is your name.D. Tell me the name you bear.
6. What is the blood of Grasshopper called?
A. HoemociteB. HoemocoelC. HoemolymphD. Hoemocyanine Back