Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.
-
Question 1061: Which of the following statements is applicable to a real image formed by a concave mirror? i. it can be observed on a screen ii. it is always inverted and in front of the mirror iii. it only seams to exist IV. it is formed by the actual converging of rays of light
Options:
A) i, ii and iii
B) i, ii and iv only
C) i and ii only
D) i and ii only
E) all four statements
Show Answer
The correct answer is B .
-
Question 1062: Of two identical tuning forks with natural frequency 256Hz, one is loaded so that 4 beats per second are heard when they are sounded together. What is the frequency of the loaded tuning fork?
Options:
A) 260Hz
B) 252Hz
C) 248Hz
D) 264Hz
E) 258Hz
Show Answer
The correct answer is A .
-
Question 1063: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then
Options:
A) A and B are equal
B) A is greater than B
C) the angle between A and B is 0°
D) the angle between A and B is 90°
E) the angle between A and B is 180°
Show Answer
The correct answer is E .
-
Question 1064: The range of accommodation of a normal human eye is
Options:
A) 0m to 0.1m
B) 0m to 0.25m
C) 0.10m to 0.25m
D) 0.10m to infinity
E) 0.25m to infinity
Show Answer
The correct answer is E .
-
Question 1065: A transformer is connected to a 250 V a.c. supply. The primary coil has 5000 turns and the secondary voltage is found to be 10 V. What is the number of turns in the secondary coil?
Options:
A) 100
B) 150
C) 200
D) 250
E) 300
Show Answer
The correct answer is C .
-
Question 1066: When the bottom tip of a vibrating tuning fork is held in contact with a wooden box, a louder sound is heard. This phenomenon is known as
Options:
A) beats
B) echoing
C) resonance
D) reverberation
Show Answer
The correct answer is C .
-
Question 1067:

In the circuit diagram above , the ammeter reads a current of 3A when R is 5Ω and 6A when R is 2Ω. Determine the value of x
Options:
A) 8Ω
B) 2Ω
C) 10Ω
D) 4Ω
Show Answer
The correct answer is C .
-
Question 1068: When a number of identical small magnets are arranged in a line, the strength of the resultant magnet
Options:
A) ia largest when they are arranged end to end
B) is greatest when they are arrangedparallel with like poles adjacent to each other
C) depends only on the number of magnets provided they arev parallel
D) is greater when the magnets are arranged on a wooden surface than on a metaln surface
Show Answer
The correct answer is A .
-
Question 1069:

The electric field between two - point charges is shown in the diagram above. What types of charges are at X and Y?
Options:
A) Both X and Y are negative
B) Both X and Y are positive
C) X is positive and Y is negative
D) X is negative and Y is positive
Show Answer
The correct answer is B .
-
Question 1070: Which of the following is used for shielding radioactive fallout?
Options:
A) Aluminum
B) Lead
C) Iron
D) Plastic
E) Wood
Show Answer
The correct answer is B .