Class VIII

Device can which be used to test whether an object is carrying charge or not is known as ...
  1. Electroscope
  2. Microscope
  3. Periscope
  4. Telescope
Which scale is used to measure the magnitude of earth quake?
  1. Celsius
  2. Kelvin
  3. Richter
  4. Pascal
Two objects with like charges will ...
  1. attract each other
  2. repel each other
  3. either attract or repel
  4. neither attract nor repel
During lightning which of the following is a NOT a safe place?
  1. Open field
  2. Inside a house
  3. Bus Stop
  4. Elevated Ridge
Two objects with unlike charges will ...
  1. attract each other
  2. repel each other
  3. either attract or repel
  4. neither attract nor repel
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