N2
ものか
Definitely not, Absolutely not, Impossible, Do you really think~?
仕事?毎日怒られてばかりだから楽しいもんか。
Work? I get yelled at everyday, so I am definitely not having a good time.
Explanation
「ものか」 has 2 uses
1Never will I
A firm resolve not to do something: 「あんな店、二度と行くものか」 (I'm never going to that shop again).
バカ言うな。俺がそんな派手な服を着るものか!
Don't be stupid! Do you really think that I would wear something so flashy?!
君にボーナスなどあげるものか。まじめに働かないんだから。
You absolutely will not get a bonus. Because you don't work diligently.
2No way
A sharp denial: it's not like that at all: 「嬉しいでしょう」「嬉しいものか」 ('You must be happy.' 'Happy? Hardly!').
あんなひどいこと言われたんだ。平気なものか。
After the awful things he said? Of course I'm not OK.
仕事?毎日怒られてばかりだから楽しいもんか。
Work? I get yelled at everyday, so I am definitely not having a good time.
Mixed up with
「ものか」: anger, stubbornness and will: 「負けるものか」 (I won't lose!).
「わけがない」: objectively impossible from facts and logic: 「彼が犯人のわけがない」 (He can't be the culprit).
「はずがない」: the speaker is convinced it is impossible: 「鍵をかけたはずだ。泥棒が入るはずがない」 (I locked up, so a thief can't have got in).