MPPSC Mains PYQs

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which travels in waves. It includes various forms of energy, categorized by wavelength and frequency. The spectrum spans from very short wavelengths, such as gamma rays and X-rays, to longer wavelengths like ultraviolet light, visible light, infrared radiation, microwaves, and radio waves. Each type of radiation has unique properties and applications. For example, visible light enables us to see, while radio waves are used for communication. Understanding the electromagnetic spectrum is crucial for fields like astronomy, medicine, and telecommunications, as it helps us harness and utilize different types of energy.

Remote sensing plays a vital role in forestry by providing valuable data for management and conservation. It uses satellite or aerial imagery to monitor forest health, assess biomass, and track changes in land use. Remote sensing helps identify tree species, estimate timber volume, and detect pests or diseases affecting forests. Additionally, it aids in mapping deforestation and reforestation efforts, ensuring sustainable practices. This technology enhances forest inventory accuracy and supports decision-making for environmental policies. Overall, remote sensing is an essential tool for promoting sustainable forestry, protecting biodiversity, and managing natural resources effectively.

Wave velocity is the speed at which a wave travels through a medium. It is determined by the type of wave and the properties of the medium, such as density and elasticity. In general, wave velocity can be calculated using the formula

$v=f\times \lambda v\; =\; f\; \backslash times\; \backslash lambda$

v=f×λ, where

$vv$

v is the wave velocity,

$ff$

f is the frequency, and

$\lambda \backslash lambda$

λ is the wavelength. Different types of waves, such as sound waves, light waves, and water waves, have varying velocities. Understanding wave velocity is crucial in fields like physics, engineering, and communications, as it impacts wave behavior and interactions.