Match the following:

(1) Shape of a rain drop	(a) Refraction
(2) Lustre of a diamond	(b) Surface tension
(3) Visibility of sun for sometime even after sunset	(c) Doppler effect
(4) Changing volume of a siren of an ambulance	(d) Total internal reflection

<font face="Arial" size="2">(1)</font> - (d), <font face="Arial" size="2">(2)</font> - (a), <font face="Arial" size="2">(3)</font> - (c) and <font face="Arial" size="2">(4)</font> - (b)

<font face="Arial" size="2">(1)</font> - (a), <font face="Arial" size="2">(2)</font> - (b), <font face="Arial" size="2">(3)</font> - (d) and <font face="Arial" size="2">(4)</font> - (c)

<font face="Arial" size="2">(1)</font> - (a), <font face="Arial" size="2">(2)</font> - (c), <font face="Arial" size="2">(3)</font> - (b) and <font face="Arial" size="2">(4)</font> - (d)

<font face="Arial" size="2">(1)</font> - (b), <font face="Arial" size="2">(2)</font> - (d), <font face="Arial" size="2">(3)</font> - (a) and <font face="Arial" size="2">(4)</font> - (c)