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?