Why red is more energetic than yellow? Since, red light has lower frequency than yellow, yellow has higher momentum than red, not mass. In a way, it’s the momentum of photons which cause the radiation pressure. If the hotter an object, the brighter it glows (more energy), then why is a blue flame less visible […]
What are the advantages and disadvantages of coal power?
What are the advantages and disadvantages of coal power? Coal energy is an affordable energy source because of the coal’s stable price compared to other fuel sources. Coal is easy to burn. Coal produces high energy upon combustion. Coal energy is inexpensive. Why should we not use coal? In 2012, coal accounted for 37.4% of […]
What is investigatory process?
What is investigatory process? COMPONENTS OF AN INVESTIGATORY PROCESS Research problem Gathering Preliminary Data Formulating the Hypothesis Testing the Hypothesis Analysing the Data Drawing Conclusion Writing the Research Report Doing an Investigatory Project. What is the another name of components? What is another word for component? constituent element ingredient part piece unit cog factor member […]
Which of the following noble gas is least Polarisable?
Which of the following noble gas is least Polarisable? Helium Why is argon a stable element? Nearly all of the argon in the Earth’s atmosphere is radiogenic argon-40, derived from the decay of potassium-40 in the Earth’s crust. The complete octet (eight electrons) in the outer atomic shell makes argon stable and resistant to bonding […]
What is the difference between loudness and frequency?
What is the difference between loudness and frequency? Frequency (the number of vibrations or sound waves per second) is measured in Hertz (Hz). A sound that is 4,000 Hz (like the sound the letter “F” makes) has 4,000 waves per second. Intensity (loudness) is the amount of energy of a vibration, and is measured in […]
Are fault lines dangerous?
Are fault lines dangerous? Major active faults such as the Hayward Fault are associated with many hazards. The most obvious hazard is that of large earthquakes, which induce ground shaking over a large area that can cause heavy objects to fall and windows to shatter, and can cause structural damage to buildings and bridges. How […]
Which color deviates biggest rainbow?
Which color deviates biggest rainbow? Violet light Which Colour is deviated most? violet color Which Colour is deviated least? red Which Colour of white light is deviated I the most ii the least? (i) Violet colour will deviate the most and (ii) red colour will deviate the least. Which Colour of white light is deviated […]
What periodic trend is most important for determining metal reactivity?
What periodic trend is most important for determining metal reactivity? Metallic and Non-metallic Character Within a compound, metal atoms have relatively low attraction for electrons, as indicated by their low electronegativities. By following the trend summary in the figure below, you can see that the most reactive metals would reside in the lower left portion […]