Related Questions

The length of a rectangular field F is 3 km greater than the side of a square field M , and the width of field F is 3 km less then the side of field M. If the area of field M is m2 square km, what is the area of field F?
A m2 +6
B 6
C m2 - 6
D m2 +9
If a copper disc is rotated rapidly below a freely suspended magnetic needle, the magnetic needle shall start rotating with a velocity
A less than that of disc but in opposite direction
B equal to that of disc and in the same direction
C equal to that of disc and in the opposite direction
D less than that of disc and in the same direction
A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the largest field is greater than the area of the smaller field by what amount?
A 4K
B 6K
C 7K
D 8K
A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the larger field is greater than the area of the smaller field by what amount ?
A 2K
B 5 K
C 6K
D 7K
When a current carrying conductor is brought into magnetic field, the force that moves the conductor depends upon
A The value of current
B The weight of the conductor
C The direction of the conductor
D None of the above
A farmer has two rectangular fields. The larger has twice the length and four times the width of the smaller field. If the smaller field has area k, then the area of the larger field is greater than the area of the smaller field by what amount?
A 2k
B 6k
C 7k
D 8k
A farmer has two rectangular field. If the smaller field has area K, then the area of the larger field is greater than the area of the smaller field by what amount?
A 2K
B 7K
C 8K
D 12K
A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the area of the smaller field is K units, what is the area of the larger field?
A 2K
B 6K
C 7K
D 8K
How does the magnetic compass needle behave in a magnetic field?
A It assures a position right angle to magnetic field
B It starts rotating
C It assures a position which follows a line of magnetic flux
D None of the above
The distance between two stations, Dhaka and Chittagong is 450 km. A train starts at 5 pm from Dhaka and moves towards chittagong at an average speed of 60 km/hr. Another train starts from Chittagong at 4:20 pm and moves towards Dhaka at an average speed of 80 km/hr. At what time will the two trains meet?
A 6:10 pm
B 7:05 pm
C 8:15 pm
D 6: 35 pm

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