Daily UPSC Prelims Current Affairs – March 10, 2023 [Mock Test]

1. Which of the following is/are the advantages of Organic Light Emitting Diodes (OLEDs) over Liquid Crystal displays (LCDs)?

  1. OLEDs do not require a backlight and filters.
  2. OLEDs are more efficient and can be fabricated on flexible plastic substrates.
  3. OLEDs are more efficient at displaying bright images.
  4. OLEDs can be fabricated in to roll-up displays.

Choose the correct answer using the codes given below:

[A] Only 2
[B] Only 1 & 4
[C] Only 1, 2 & 4
[D] 1, 2, 3 & 4

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2. Consider the following statements:

  1. A photonic crystal is an optical nanostructure in which the refractive index does not change.
  2. Refractive index gives an indication of the light-bending ability of that medium.
  3. Graphene is a three-dimensional honeycomb carbon lattice nanostructure.

Which of the statements given above is/are correct?

[A] Only 2
[B] Only 1 & 2
[C] Only 2 & 3
[D] 1, 2 & 3

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3. Consider the following statements:

  1. Core and headline inflation is a measure of the total inflation within an economy, including commodities such as food and energy prices.
  2. Retail Inflation is measured in India using Consumer Price Index- Combined (CPI-C).

Which of the statements given above is/are correct?

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

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