WAEC UPDATES

WAEC physics Answers 2020 confirmed

WAEC PHYSICS answers 2020 confirmed

Here is the long awaited answers…  Make sure to confirm each questions before answering them. Good luck, share link to your friends to join…

Part ii a) DescriptionTorque is the rotational equivalent of linear force. It is also referred to as the moment, moment of force, rotational force or turning effect, depending on the field of study. The concept originated with the studies by Archimedes of the usage of levers.

I)An object appears to be raised when paced under water.
ii)Pool of water appears less deep than it actually is.
III)If a lemon is kept in a glass of water it appears to be bigger when viewed from the sides of glass.
ii)It is due to refraction of light that stars appear to twinkle at night.

A progressive wave is defined as the onward transmission of the vibr atory motion of a body in an elastic medium from one particle to the successive particle.

Part ii b) A free falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. … Free-falling objects do not encounter air resistance.

Part ii a) DescriptionTorque is the rotational equivalent of linear force. It is also referred to as the moment, moment of force, rotational force or turning effect, depending on the field of study. The concept originated with the studies by Archimedes of the usage of levers.

3b

To confine the optical signal in the core, the refractive index of the core must be greater than that of the cladding. The boundary between the core and cladding may either be abrupt, in step-index fiber, or gradual, in graded-index fiber. Light can be fed into optical fibers using lasers or LEDs.

Part ii b) A free falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. … Free-falling objects do not encounter air resistance.

Part ii a) DescriptionTorque is the rotational equivalent of linear force. It is also referred to as the moment, moment of force, rotational force or turning effect, depending on the field of study. The concept originated with the studies by Archimedes of the usage of levers.

:

Part ii b) A free falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. … Free-falling objects do not encounter air resistance.

Part ii a) DescriptionTorque is the rotational equivalent of linear force. It is also referred to as the moment, moment of force, rotational force or turning effect, depending on the field of study. The concept originated with the studies by Archimedes of the usage of levers.

Pick two
Effects of refraction
I)An object appears to be raised when paced under water.
ii)Pool of water appears less deep than it actually is.
III)If a lemon is kept in a glass of water it appears to be bigger when viewed from the sides of glass.
ii)It is due to refraction of light that stars appear to twinkle at night.

 

: Part ii b) A free falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. … Free-falling objects do not encounter air resistance.

Part ii a) DescriptionTorque is the rotational equivalent of linear force. It is also referred to as the moment, moment of force, rotational force or turning effect, depending on the field of study. The concept originated with the studies by Archimedes of the usage of levers.

3b

To confine the optical signal in the core, the refractive index of the core must be greater than that of the cladding. The boundary between the core and cladding may either be abrupt, in step-index fiber, or gradual, in graded-index fiber. Light can be fed into optical fibers using lasers or LEDs.

Mutual Inductance is the interaction of one coils magnetic field on another coil as it induces a voltage in the adjacent coil

In the previous tutorial we saw that an inductor generates an induced emf within itself as a result of the changing magnetic field around its own turns.
[8/28, 09:31] Temidayo: A progressive wave is defined as the onward transmission of the vibratory motion of a body in an elastic medium from one particle to the successive particle.

:
2a.A typical flat-plate collector is a metal box with a glass or plastic cover (called glazing) on top and a dark-colored absorber plate on the bottom. … Sunlight passes through the glazing and strikes the absorber plate, which heats up, changing solar energy into heat energy.

2aii Solar thermal collectors heating water. Flat-plate and evacuated-tube solar collectors are mainly used to collect heat for space heating, domestic hot water, or cooling with an absorption chiller. In contrast to solar hot water panels, they use a circulating fluid to displace heat to a separated reservoir.

Theory-Answers.

(7)
(i)Coherence
(ii)Directionality
(iii)Monochromatic

(1)
Original length Lo= 3m
Extension e = 310 = 3*3= 9m
F×e
F=ke where k = 982.3NM-²
F=982.3*9=8,840.7N
The five that produce the extension F = 8.840.7N

 

 

 

 

We will Keep updating this post… Keep following

MyScholarshipBaze

I love surfing the web and providing great information for my readers. I am an Editor At Myscholarshipbaze.com

Recent Posts

Police Recruitment Screening Date and Venue 2023

Police Recruitment Screening Date and Venue 2023 The Police Command in the Federal Capital Territory…

32 minutes ago

Maurid polytechnic cut off mark 2023

Maurid Polytechnic cut-off mark 2023 We are glad to bring to your notice the Maurid…

6 hours ago

FORSAGE TRON REVIEW | SCAM OR LEGIT?

FORSAGE TRON REVIEW | SCAM OR LEGIT? FORSAGE TRON is a smart contract platform built…

8 hours ago

Courses offered at the University of Abuja (UNIABUJA)

Courses offered at the University of Abuja (UNIABUJA), Gwagwalada The University of Abuja is a…

14 hours ago

UNIPORT School fees 2022/2023 | All departments

UNIPORT School fees 2022/2023 | All departments University of port Harcourt uniport school fees are…

18 hours ago

How To Cook Coconut Rice

How To Cook Coconut Rice It's not an exaggeration that average Nigerians eat rice three…

23 hours ago