Dr. Reddy's Senior Executive Interview Questions and Answers

Weight difference of two samples after ignition of ROI

• ROI stands for Residue on Ignition

• The weight difference is due to the loss of volatile substances during ignition

• The weight loss can be used to calculate the percentage of volatile substances in the sample

• This technique is commonly used in pharmaceutical and food industries

The IR region range refers to the range of wavelengths in the infrared region of the electromagnetic spectrum.

• The IR region range typically spans from approximately 700 nanometers to 1 millimeter.

• It is divided into three main regions: near-infrared (NIR), mid-infrared (MIR), and far-infrared (FIR).

• Each region has different applications and characteristics. For example, NIR is commonly used in remote controls and optica...read more

UV range refers to the range of ultraviolet radiation wavelengths.

• UV range is typically divided into three categories: UVA (320-400 nm), UVB (280-320 nm), and UVC (100-280 nm).

• UVA is responsible for skin aging and wrinkling, while UVB causes sunburn and skin cancer.

• UVC is absorbed by the ozone layer and does not reach the Earth's surface.

• UV radiation can also be used for disinfection and sterilization purposes.

• UV range...read more