Question

Sub: Maths & Physics
Time: 90 min
Marks: 50
MATHS
If log(x - y) = log x - log y then x =
y2
A)
D)
9 12
y-1
y +1
D)
y-1
2.
C) 3
D) 3
3.
C) 3
D) 4
4.
C) 0
D) 1
5.
у
B)
2
-1
The characteristic of log 0.005427 is
A) 6
B) 5
The characteristic of log10 42.56 is
A) 1
B) 2
Mantissa is always
A) positive
B) negative
The value of Mantissa is
A) greater than 1 B) less than 1
1
1
1
+
+
loga abc logb abc log, abc
A) 0
B) 1
If 2log(x+3) = log 81 then x =
A) 3
B) 4
V3+15 is a
A) positive rational number
C) positive irrational number
2 log 3 – 3log 2 =
C) 1
D) any value
6.
D) log abc
D) abc
7.
C) 5
D) 6
8.
B) negative rational number
D) negative irrational number
A) log 0
B) log 1
C) log
D) log(72)
10.
log2 log255 =
A) 0
B) 1
C)-1
D)
1
11. If at = aY= km, thenकैरेक्टरिस्टिक ऑफ लॉक 0.00 5427
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Answer 1

Answer:

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