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jamb2020chemistry
Q1. When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?
ABipolar
BNegatively charged
CPositively charged
DNeutral
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jamb2025mathematics
Q2. If m * n = mn + m - n, evaluate 4 * 3.
A9
B11
C13
D15
Correct Answer: C
4 * 3 = (4 × 3) + 4 - 3 = 12 + 4 - 3 = 13. So, the answer is C.
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jamb2022computerstudies
Q3. Which is a type of computer network?
APAN
BSQL
CHTML
DCSS
Correct Answer: A
PAN (Personal Area Network) connects personal devices, like via Bluetooth, unlike SQL, HTML, or CSS.
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jamb2019economics
Q4. Given the data set: 10, 20, 30, 40, 50, the range is
A30
B40
C50
D60
Correct Answer: B
Range = maximum - minimum = 50 - 10 = 40.
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jamb2012biology
Q5. The water cycle is maintained mainly by
Aevaporation of water in the environment
Bevaporation and condensation of water in the environment
Ccondensation of water in the environment
Dtranspiration and respiration in plants
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jamb2008englishlit
Q6. The chorus in the prologue of the play is essentially meant to
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jamb2019physics
Q7. The following are parts of the eye
I. Retina
II. Pupil
III. Iris
The correct equivalent in the camera in the same order are
ADiaphragm, Aperture, film
BAperture, Diaphragm, Film
CFilm, Diaphragm, Aperture
DFilm, Aperture, Diaphragm
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jamb2010biology
Q8. The oily substance that lubricates the mammalian hair to keep it flexible ad water repellent is secreted by the
Asweat glands
Bsebaceous glands
Cfatty cells
Dgranular layer
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jamb2022accounting
Q9. Which document serves as evidence of a credit sale in accounting?
AReceipt
BInvoice
CJournal entry
DLedger account
Correct Answer: B
An invoice evidences a credit sale, making option B correct.
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jamb2009crk
Q10. After Prophet Ezekiel had eaten what he was offered, he was sent to speak to
Aa people of hard language
Bthe house of Israel
Cthe house of Judah
Da people of foreign language
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jamb2024accounting
Q11. State Bank collected a note for Al-Makura Company. This collection, not yet recorded in Al-Makura’s books, appears on the bank reconciliation as
Aan addition to the balance per books
Ba deduction from the balance per bank statement
Can addition to the balance per bank statement
Da deduction from the balance per books
Correct Answer: A
A note collected by the bank increases the cash book balance but isn’t recorded yet, so it’s added to the balance per books during reconciliation.
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jamb2012physics
Q12. The magnification of an object 2cm tall when placed 10cm in front of a plane mirror is
A6.0
B1.0
C0.7
D0.6
Correct Answer: B
Given information:
Object height = 2 cm
Object distance = 10 cm
Mirror type: plane mirror
Solution:
Step 1: Magnification by a plane mirror
For a plane mirror, the image is always the same size as the object.
Step 2: Formula for magnification
Magnification = image height / object height = 1 (since image height = object height)
Step 3: Value of magnification
Magnification = 1.0
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jamb2003chemistry
Q13. Which of the following ions is acidic
AK+
BNO-3
CS2-
DH3O+
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jamb2024government
Q14. The first Nigeria permanent Representative to the United Nation was
AAlhaji Yusuf Maitama Sule
BGeneral Joseph Garba
CProfessor Ibrahim Gambari
DChief Simeon Adebo
Correct Answer: D
Chief Simeon Adebo was Nigeria’s first Permanent Representative to the United Nations, serving in the early 1960s.
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jamb2015civiledu
Q15. From the above write-up what category of Kantoguan youth deserves to be effectively empowered?
AChildren of the ruling political class
BUnemployed youths and school drop-outs
CUniversity undergraduates
DYouth wing of religious organizations
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jamb2023physics
Q16. What does the mass-energy equivalence state in the context of relativity?
AMass and energy are unrelated
BMass can be converted into energy and vice versa
CMass is always conserved, but energy is not
DEnergy is always conserved, but mass is not
Correct Answer: B
Einstein’s mass-energy equivalence (E = mc^2) states that mass can be converted into energy and vice versa, with total mass-energy conserved, as seen in nuclear reactions.
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jamb2001government
Q17. The equivalent of the commissioner at the local government level is the
AExecutive chairman
BSecretary
CCouncilor
DSupervisory councillor
Correct Answer: D
The equivalent of a commissioner at the local government level is the supervisory Councillor. At the state level, a commissioner is the highest or completely in-charge of a particular ministry. For instance, the commissioner for education. He does not come in through election but through the appointment by the government of the state. Coming to the local government level, the supervisory Councillor for education as well as any other supervisory Councillor is appointed to the Executive Chairman of the local government subject to the approved of the Councillors.
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jamb2005biology
Q18. I. Rettus rattus II. Agama agama II Bufo regularis IV. Tilapia Zill. The order of evolutionary advancement of the above
AI, II and III , IV
BI, IV, III, II
CII, III, IV, I
DIV, III, II, I
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jamb2019physics
Q19. The lunar eclipse occurs when the
AEarth is between the sun and the moon
BMoon is between the sun and the earth
CSun is between the earth and the moon
DMoon is behind the earth’s atmosphere
Correct Answer: A
A lunar eclipse occurs when the Earth is between the sun and the moon, casting a shadow on the moon.
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jamb2018fineart
Q20. Which of the following artists is associated with the De Stijl movement?
APiet Mondrian
BSalvador Dalí
CClaude Monet
DVincent van Gogh
Correct Answer: A
Piet Mondrian was a leading figure in the De Stijl movement, a Dutch art movement of the early 20th century that emphasized geometric abstraction and primary colors. His works, like *Composition with Red, Blue, and Yellow*, used horizontal and vertical lines to create balanced, minimalist compositions, defining the movement’s aesthetic.