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Alpha particles possess greater penetration power than that of beta particles due to its_____________?

(A) Smaller ionization power
(B) Greater ionization power
(C) Neither greater nor smaller ionization power
(D) Same ionization power

Submitted By :Ali Uppal

Beta particles ionize an atom_________________?

(A) Due to the electrostatic force of attraction
(B) Due to the electrostatic force of repulsion
(C) Due to a direct collision
(D) Due to the gravitational force

Submitted By :Ali Uppal

Why gamma rays are used to kill bacteria to sterilize surgical equipment etc ?

(A) Chargeless
(B) Massless
(C) Highly penetrating
(D) All of above

Submitted By :Ali Uppal

In any measurement the significant figures are______________?

(A) All accurately known and all doubtful digits
(B) Only accurately known digits
(C) Only doubtful digits
(D) All accurately known digits and the first doubtful digit

Submitted By :Ali Uppal

Random errors can be reduced by_______________?

(A) Taking zero correction
(B) Comparing the instrument with another more accurate one
(C) Taking mean of several measurements
(D) All methods explained in A, B and C

Submitted By :Ali Uppal

The uncertainty in a measurement may occur due to_______________?

(A) Limitation of an instrument
(B) Natural variation of the object to be measured
(C) Inadequate technique
(D) All given in A, B and C

Submitted By :Ali Uppal

The error in measurement may occur due to_________________?

(A) The inexperience of a person
(B) The faulty apprentice
(C) Inappropriate method
(D) Due to all reasons in A, B and C

Submitted By :Ali Uppal

Prefix deca represents_______________?

(A) 10 Raised to power 1
(B) 10 Raised to power 2
(C) 10 Raised to power 3
(D) 10 Raised to power -1

Submitted By :Ali Uppal

1024 can be written in scientific notation as______________?

(A) 1.024×103
(B) 2 Raised to power 10
(C) 0.000976
(D) 1/0.00097

Submitted By :Ali Uppal

In scientific notation, numbers are expressed in________________?

(A) Power of ten
(B) Powers of two
(C) Reciprocal
(D) Decimal

Submitted By :Ali Uppal

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