UPSC Prelims Full Length Test - 41

Consider the following statements about chlorophyll:
  1. It helps in converting light energy to chemical energy in plants
  2. It absorbs green light in the region of visible spectrum
Which of the above statements is/are correct?
Which of the following obtain its/their energy through photosynthesis?
  1. Cyanobacteria
  2. Fungi
  3. Sea anemones
Select the correct option from codes given below:
Consider the following pairs of instruments with what they measure:
  1. Bolometer - Electromagnetic radiation
  2. Pycnometer - Fluid Density
  3. Ellipsometer - Refractive Index
Which of the above is/are correct?
Consider the following statements:
  1. Waves with the shortest wavelengths have the highest frequencies
  2. Red light has the longest wavelength, and violet the shortest
Which of the above statements is/are correct?
Consider the following differences between Bluetooth and Near field communication (NFC) technologies:
  1. Bluetooth has higher effective range in comparison to NFC
  2. NFC technology consumes little power when compared to standard Bluetooth technology
Which of the above statements is/are correct?

Category: UPSC

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