3. All objects radiate energy then why cant we see onbjects in dark

Q: If we hit a 0.25 kg ball travelling 15 m/s leftward towards the bat that then travels 15 m/s…

A: mass of ball (m) = 0.25 kg travelling speed of ball (u) = -15 msfinal speed of ball (v) = 15 ms

Q: Astronomy question: Which light can we only observe from space? lights: Viciblo

A:

Q: 7.    What is the photoelectric effect and why couldn’t it be explained by classical physics?

A: PHOTOELECTRIC EFFECT: The incident radiation is absorbed and the exposed surface emits electrons…

Q: Question 3 Recall that light is a wave and so we can use the relationship that the speed of light…

A: 3. The relation between speed of light, wavelength and frequency of photon is expressed as, c=λfλ=cf

Q: Define photocell.

A: A device in which the photoelectric or photovoltaic effect or photoconductivity is used to produce a…

Q: A star is an example of a true blackbody.   True  False

A: We have to identify if the given statement 'A star is an example of a true blackbody' is true or…

Q: Describe the physical properties of light and explain the relationshipbetween a wavelength of light…

A: The physical properties of light are:  1. Speed  The light travels with the greatest speed of…

Q: Matter has an associated wavelength Selected answer will be automatically saved. For keyboard…

A: We wil answer the question by using the De Broglie relation, which gives the wavelength associated…

Q: 1.The hydrogen emission spectrum had no green line. Explain using your own words (hints: how would…

A:

Q: UESTION 3 Match the word with the example E v Conduction A. Sea breezes E v Convection B. Global…

A:

Q: Can you give examples for blackbodies? Is the sun a blackbody? Is the moon a blackbody? Is the LED a…

A: BLACK BODY; Definition A black body is a  type of a body ore we can say a type of a surface that can…

Q: 10-3 W). A laser pointer with a wavelength λ = 550 nm has an output power of 5.80 mW (1 mW = What is…

A: Wavelength of light, λ = 550 nm = 550×10-9 m Output power of laser light, P = 5.80×10-3 W

Q: Name three ways that the 'em spectrum was impactful?

A: Introduction: Electromagnetic (EM) spectrum is defined as range of all electromagnetic radiations…

Q: n the comics, Iron Man can make his Stealth Armor invis /hat does Iron Man do to the light to make…

A: Magnetic force is a consequence of electromagnetic force and is caused due to the motion of charges.…

Q: Pls solve this question correctly in 5 min i will give u like for sure 1- What is the wavelength…

A: