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

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 into roll-up displays.

Select the correct answer using the codes given below:

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?

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

Which of the above statements is / are correct?