Physics Chemistry & Biology Test 1
Law of refection ?
  • Angle of incidence is grater than angle of reflection
  • Angle of incidence is lesser than angle of reflection
  • Angle of incidence is equal than angle of reflection
  • None
Size of Pupils are controlled by
  • Cornea
  • Cilliary muscle
  • Iris
  • Lens
Normal adult can read with an eyes is about ?
  • 10 cm
  • 25 cm
  • 50 cm
  • 100 cm
In how many days moon takes to orbit the Earth ?
  • 25.3 days
  • 26.3 days
  • 27.3 days
  • 28.3 days
Which of following statement is correct ?
  • Moon has atmosphere
  • Moon has No atmosphere
  • Both
Electrical Fuse is kept in ___________ circuit to protect from damage caused by high voltage ?
  • Series
  • Parallel
  • Both
  • None
Electrical Fuse wire is made up of alloy ?
  • Lead
    • Explanation:

    Electrical fuse wire is typically made from an alloy of lead and tin. as copper can also be part of some fuse designs, but lead and tin are the primary components.